Prime Minister Keir Starmer faces mounting pressure following Labour's heavy losses in the May 7 local elections across England, Scotland, and Wales, where Reform UK made significant gains amid voter dissatisfaction with economic policies, immigration handling, and scandals. Starmer has taken responsibility but insists he will fight on, rejecting calls to quit despite plummeting approval ratings and speculation of an internal leadership challenge—which Labour rules require nominations from 20% of MPs to initiate. No opposition no-confidence vote looms imminently, given Labour's parliamentary majority until the next general election by 2029, but ongoing Cabinet tensions and Reform's surge could accelerate party infighting or prompt a snap leadership contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNo‑confidence motions fail to materialise in Commons; Starmer announces cabinet reshuffle to retain unity
3†L1-L4 dips to 10%1%
The absence of a formal challenge and a reshuffle aimed at stabilising the government gave traders a modest reason to ease the “out” probability.
Free‑bets analysis notes that despite the Mandelson turmoil, polling still shows Labour trailing, keeping the “out by 30 June” odds low and stable at 42%
June 30 dips to 42%1%
Free‑bets analysis notes that despite the Mandelson turmoil, polling still shows Labour trailing, keeping the “out by 30 June” odds low and stable at 42%
Labour suffers heavy losses in local elections; Greens win Gorton & Denton seat
10†L1-L4 rises to 11%2%
The poor local‑election performance was interpreted as a warning sign for Starmer’s electoral appeal, briefly lifting “out” odds before the market settled.
“Save Starmer” operation announces a reset speech and proposes scrapping manifesto tax pledges, temporarily stabilising the market at 41% Yes
“Save Starmer” operation announces a reset speech and proposes scrapping manifesto tax pledges, temporarily stabilising the market at 41% Yes
No new resignation announcement;
May 15 dips to 7%1%
Labour MPs publicly back Starmer, confirming the low‑probability outlook
Conservative leader Kemi Badenoch labels Starmer’s position “untenable” and calls for his immediate resignation, briefly lifting “Yes” odds
May 15 dips to 8%3%
Conservative leader Kemi Badenoch labels Starmer’s position “untenable” and calls for his immediate resignation, briefly lifting “Yes” odds
Scottish Labour leader Anas Sarwar calls for Starmer’s resignation, renewing opposition pressure and nudging the
June 30 drops to 41%6%
Scottish Labour leader Anas Sarwar calls for Starmer’s resignation, renewing opposition pressure and nudging the
Bank of England Governor Andrew Bailey publicly dismisses “moron‑premium” market moves but acknowledges “Damocles sword” over gilt traders as the Mandelson saga continues, keeping
December 31 dips to 67%1%
Bank of England Governor Andrew Bailey publicly dismisses “moron‑premium” market moves but acknowledges “Damocles sword” over gilt traders as the Mandelson saga continues, keeping the probability of a Starmer exit elevated
Starmer announces internal review of foreign‑office decision‑making – The promise of a review was interpreted as a concession, halting the decline and stabilising the market near
May 15 rises to 11%2%
Starmer announces internal review of foreign‑office decision‑making – The promise of a review was interpreted as a concession, halting the decline and stabilising the market near 11 %. |
Starmer announces a modest policy U‑turn on immigration, gaining a modest bump in public opinion polls and easing immediate resignation speculation
June 30 drops to 41%7%
Starmer announces a modest policy U‑turn on immigration, gaining a modest bump in public opinion polls and easing immediate resignation speculation
Starmer publicly announces a formal internal review of the Mandelson appointment, which traders interpret as a concession and pushes the
May 15 rises to 11%3%
Starmer publicly announces a formal internal review of the Mandelson appointment, which traders interpret as a concession and pushes the
BBC reports three men charged with targeting Starmer‑linked properties in north London, raising concerns over personal security and possible political fallout
December 31 plunges to 67%20%
BBC reports three men charged with targeting Starmer‑linked properties in north London, raising concerns over personal security and possible political fallout
| BBC reports that two senior Labour MPs have formally submitted letters of no‑confidence in Starmer, citing the ongoing scandal |
| BBC reports that two senior Labour MPs have formally submitted letters of no‑confidence in Starmer, citing the ongoing scandal |
BBC reports ongoing parliamentary inquiry into Mandelson vetting – Continued investigative scrutiny kept resignation risk elevated, nudging the
May 15 dips to 9%3%
BBC reports ongoing parliamentary inquiry into Mandelson vetting – Continued investigative scrutiny kept resignation risk elevated, nudging the
BBC News reports that no parliamentary motion or leadership challenge is scheduled for the coming week, and Starmer’s government survives a confidence‑vote, effectively ending the
BBC News reports that no parliamentary motion or leadership challenge is scheduled for the coming week, and Starmer’s government survives a confidence‑vote, effectively ending the short‑term risk of his removal
Downing Street confirms Starmer will stay Prime Minister beyond the current Parliament – The Independent reported an official Downing Street statement that Starmer will remain in
April 30 dips to 0%1%
Downing Street confirms Starmer will stay Prime Minister beyond the current Parliament – The Independent reported an official Downing Street statement that Starmer will remain in office “throughout this Parliament and beyond,” providing the final reassurance that eliminated any remaining probability of his departure before the market’s cut‑off.
Polymarket data shows “May 15” odds falling to 8 % as the market absorbs the Burnham decision and Starmer’s renewed cabinet support
May 15 drops to 8%10%
The platform’s updated odds reflected traders’ belief that the immediate threat had receded, driving the
iNews analysis warns Starmer is too weak to stage a reshuffle after the upcoming local elections, citing Angela Rayner’s potential challenge and the risk of backbench rebellion
May 15 dips to 8%3%
iNews analysis warns Starmer is too weak to stage a reshuffle after the upcoming local elections, citing Angela Rayner’s potential challenge and the risk of backbench rebellion
Market reaches 0 With no credible resignation news and the cumulative effect of the Mandelson scandal and Robbins dismissal, the market
April 30 dips to 0%1%
Market reaches 0 With no credible resignation news and the cumulative effect of the Mandelson scandal and Robbins dismissal, the market
Polymarket notes a rise to 11 % after Starmer announces an internal review of the foreign‑office decision‑making process
May 15 dips to 8%3%
Polymarket notes a rise to 11 % after Starmer announces an internal review of the foreign‑office decision‑making process
Starmer survives PMQs, but MPs continue to press for his exit – A brief rebound after the fact‑check reflected lingering uncertainty despite the debunked rumor. |
May 15 rises to 12%4%
Starmer survives PMQs, but MPs continue to press for his exit – A brief rebound after the fact‑check reflected lingering uncertainty despite the debunked rumor. |
Reuters fact‑check debunks a viral claim that the Supreme Court ordered Starmer to resign, removing a false “resignation trigger” and confirming the market’s move to 0% Yes
April 30 dips to 0%1%
Reuters fact‑check debunks a viral claim that the Supreme Court ordered Starmer to resign, removing a false “resignation trigger” and confirming the market’s move to 0% Yes
Live PMQs show Starmer surviving a “bruising” Commons day as backbench pressure eases – The Guardian’s briefing noted that despite intense scrutiny, Starmer emerged unscathed from
Live PMQs show Starmer surviving a “bruising” Commons day as backbench pressure eases – The Guardian’s briefing noted that despite intense scrutiny, Starmer emerged unscathed from the session, confirming that no immediate parliamentary action would force him out.
During PMQs, Conservative leader Kemi Badenoch presses Starmer on whether he will reshuffle Chancellor Rachel Reeves;
May 15 drops to 11%7%
Starmer refuses to guarantee her job, implying she may be “toast”
ABC News confirms Parliament’s final vote against an inquiry into Starmer’s handling of the Mandelson appointment, cementing his survival and pushing the market’s “Yes”
April 30 dips to 0%3%
ABC News confirms Parliament’s final vote against an inquiry into Starmer’s handling of the Mandelson appointment, cementing his survival and pushing the market’s “Yes” probability to 0 %
Fact‑check: Supreme Court did not order Starmer to resign – Reuters fact‑check clarified that the UK Supreme Court has no power to force a Prime Minister’s resignation and had
April 30 dips to 1%3%
Fact‑check: Supreme Court did not order Starmer to resign – Reuters fact‑check clarified that the UK Supreme Court has no power to force a Prime Minister’s resignation and had made no such order, quashing a viral claim that could have triggered a market spike toward “Yes”.
Fact‑check: Supreme Court never ordered Starmer to resign – Disproving a viral claim removed a source of speculative panic, causing the market’s lowest point of the period. |
May 15 drops to 8%11%
Fact‑check: Supreme Court never ordered Starmer to resign – Disproving a viral claim removed a source of speculative panic, causing the market’s lowest point of the period. |
Reuters fact‑check confirms the Supreme Court never ordered Starmer to resign, debunking a viral claim that had briefly revived market optimism for a “Yes” outcome
April 30 dips to 0%1%
Reuters fact‑check confirms the Supreme Court never ordered Starmer to resign, debunking a viral claim that had briefly revived market optimism for a “Yes” outcome
UK parliament votes against launching an inquiry into Starmer’s handling of the Mandelson appointment – The decisive vote removed the immediate threat of a parliamentary probe,
April 30 drops to 0%6%
UK parliament votes against launching an inquiry into Starmer’s handling of the Mandelson appointment – The decisive vote removed the immediate threat of a parliamentary probe, sending the market’s “Yes” probability to zero and effectively ending the risk of a resignation before the market’s end date.
ITV reports the Commons vote outcome and Conservative leader Kemi Badenoch’s warning that Labour MPs will “rue the day” they blocked the referral, underscoring the political stakes
April 30 dips to 3%2%
ITV reports the Commons vote outcome and Conservative leader Kemi Badenoch’s warning that Labour MPs will “rue the day” they blocked the referral, underscoring the political stakes
Downing Street declares Starmer will remain Prime Minister beyond the current Parliament – The Standard reported an official statement that Starmer will stay in office, removing
April 30 dips to 0%1%
Downing Street declares Starmer will remain Prime Minister beyond the current Parliament – The Standard reported an official statement that Starmer will stay in office, removing any credible trigger for a resignation and pushing the market
Starmer blocks a Tory‑led attempt to refer him to the Privileges Committee over the Mandelson vetting scandal, further exposing internal fractures (no change, but reinforced
Starmer blocks a Tory‑led attempt to refer him to the Privileges Committee over the Mandelson vetting scandal, further exposing internal fractures (no change, but reinforced downward trend)
No resignation announcement; Labour MPs publicly back Starmer Following a series of cabinet‑level resignations earlier in the month, senior Labour figures reiterated their
April 30 dips to 1%1%
No resignation announcement; Labour MPs publicly back Starmer Following a series of cabinet‑level resignations earlier in the month, senior Labour figures reiterated their confidence in Starmer, leaving traders with no trigger for a “Yes” outcome
MPs vote 223 for – 335 against referring Starmer to the Privileges Committee, decisively rejecting the opposition’s bid to launch an inquiry
April 30 dips to 5%3%
MPs vote 223 for – 335 against referring Starmer to the Privileges Committee, decisively rejecting the opposition’s bid to launch an inquiry
Starmer rallies cabinet, whips and former PM Gordon Brown to shore up Labour support ahead of the Mandelson vote, describing the day as “critical” for his premiership
April 30 dips to 10%1%
Starmer rallies cabinet, whips and former PM Gordon Brown to shore up Labour support ahead of the Mandelson vote, describing the day as “critical” for his premiership
Reuters reports Parliament will vote on a possible inquiry into whether Starmer misled the Commons over the Mandelson appointment – Anticipation of a damaging inquiry briefly
April 30 jumps to 6%5%
Reuters reports Parliament will vote on a possible inquiry into whether Starmer misled the Commons over the Mandelson appointment – Anticipation of a damaging inquiry briefly revived “Yes” odds, producing the small rebound seen on April 23‑25.
Parliament schedules vote on a possible Privileges Committee inquiry into whether Starmer misled the House over Peter Mandelson’s appointment
April 30 dips to 11%2%
Parliament schedules vote on a possible Privileges Committee inquiry into whether Starmer misled the House over Peter Mandelson’s appointment
Starmer urges Labour MPs to “stick together” ahead of critical Privileges Committee vote – In a televised address, Starmer called for unity as the standards investigation loomed,
Starmer urges Labour MPs to “stick together” ahead of critical Privileges Committee vote – In a televised address, Starmer called for unity as the standards investigation loomed, reinforcing party cohesion and dampening speculation of a resignation.
Cabinet ministers publicly rally around Starmer after the resignation of Downing‑Street chief of staff Morgan McSweeney, temporarily boosting confidence
June 30 rises to 47%2%
Cabinet ministers publicly rally around Starmer after the resignation of Downing‑Street chief of staff Morgan McSweeney, temporarily boosting confidence
Front‑bench minister Vicky Foxcroft resigns over £5 bn benefits cut proposal
May 15 dips to 14%2%
Her resignation highlighted policy‑driven rebellion within Labour, reinforcing expectations of a leadership challenge and keeping the
Betting‑sites list Starmer as odds‑on to leave (Ladbrokes 1/7, ~87% implied)
May 15 drops to 16%12%
The stark shift in betting odds, the strongest short‑term signal of a likely exit, pushed the market to its lowest levels of the period.
Deputy Prime Minister Angela Rayner resigns after tax‑under‑payment controversy, raising doubts about Starmer’s cabinet stability
May 15 dips to 11%3%
Deputy Prime Minister Angela Rayner resigns after tax‑under‑payment controversy, raising doubts about Starmer’s cabinet stability
Starmer repeats that “vast majority” of Labour MPs want him to stay on as prime minister in a Metro interview – The repeated claim of strong party support further eroded “Yes”
April 30 dips to 1%2%
Starmer repeats that “vast majority” of Labour MPs want him to stay on as prime minister in a Metro interview – The repeated claim of strong party support further eroded “Yes” sentiment, pushing the
Starmer begins three‑day strategic visit to China While intended to boost trade, the trip was framed by media as a distraction from the domestic crisis, and no new
April 30 dips to 2%2%
Starmer begins three‑day strategic visit to China While intended to boost trade, the trip was framed by media as a distraction from the domestic crisis, and no new leadership‑change narrative emerged, reinforcing market belief that Starmer would stay in office
GB News reports Starmer broke the ministerial code after an undisclosed Palantir visit
May 15 drops to 9%5%
Allegations of a code breach added a fresh legal‑ethical dimension to the crisis, prompting another dip in the market.
Prime Minister Starmer delivers a televised address defending his record and denying any wrongdoing, which steadies the market after a prior decline 【10†L1-L4]
June 30 jumps to 48%8%
Prime Minister Starmer delivers a televised address defending his record and denying any wrongdoing, which steadies the market after a prior decline 【10†L1-L4]
Andy Burnham blocked by the Labour NEC from standing in the Gorton & Denton by‑election
May 15 drops to 18%6%
BD News24 reported the NEC vote (8‑1) that kept Burnham out of Parliament, removing a potential leadership challenger and pushing the
Starmer survives Commons vote on Privileges Committee referral despite 15 Labour rebels voting against him – Labour MPs defied a three‑line whip and voted to refer Starmer to the
April 30 dips to 1%4%
Starmer survives Commons vote on Privileges Committee referral despite 15 Labour rebels voting against him – Labour MPs defied a three‑line whip and voted to refer Starmer to the Privileges Committee, but Downing Street’s heavy whipping forced the motion down, signalling that the government could still block an inquiry and keep Starmer in post.
Starmer survives a no‑confidence vote in the Labour caucus after promising a “new fiscal roadmap”;
June 30 surges to 48%29%
bond markets stabilize and the market
Daily Mail reports that Starmer has told allies he does not want a reshuffle, despite pressure from his political director and chief whip, suggesting the cabinet shake‑up may be
May 15 drops to 18%7%
Daily Mail reports that Starmer has told allies he does not want a reshuffle, despite pressure from his political director and chief whip, suggesting the cabinet shake‑up may be postponed
Guardian reports that Labour MP Jonathan Brash publicly calls for Starmer’s resignation, adding fresh pressure from within the party and pushing odds toward zero
April 30 dips to 1%1%
Guardian reports that Labour MP Jonathan Brash publicly calls for Starmer’s resignation, adding fresh pressure from within the party and pushing odds toward zero
SNP leader Stephen Flynn urges a no‑confidence vote on Starmer – The prospect of a formal parliamentary challenge revived resignation odds, driving the
May 15 drops to 19%8%
SNP leader Stephen Flynn urges a no‑confidence vote on Starmer – The prospect of a formal parliamentary challenge revived resignation odds, driving the
The Telegraph (via i Paper) reveals “live discussions” in the Cabinet about when to tell Starmer to quit, but the talks remain private and no public demand is made, dampening
The Telegraph (via i Paper) reveals “live discussions” in the Cabinet about when to tell Starmer to quit, but the talks remain private and no public demand is made, dampening speculation
Anas Sarwar renews his resignation demand in a televised interview, citing “irreconcilable differences” with Starmer over the Mandelson case
December 31 surges to 68%16%
Anas Sarwar renews his resignation demand in a televised interview, citing “irreconcilable differences” with Starmer over the Mandelson case
Ipsos poll shows half of Britons now think Starmer should step down, pushing “Yes” back up
June 30 surges to 42%19%
Ipsos poll shows half of Britons now think Starmer should step down, pushing “Yes” back up
Starmer survives a Labour rebellion over a proposed parliamentary inquiry into Peter Mandelson’s appointment, but the vote shows his dwindling political capital
May 15 drops to 25%5%
Starmer survives a Labour rebellion over a proposed parliamentary inquiry into Peter Mandelson’s appointment, but the vote shows his dwindling political capital
Starmer defies resignation calls in Parliament, claims allegations “put to bed” – His refusal to step down softened the market’s bearish momentum, producing a modest decline. |
May 15 dips to 27%4%
Starmer defies resignation calls in Parliament, claims allegations “put to bed” – His refusal to step down softened the market’s bearish momentum, producing a modest decline. |
Reform UK MP Danny Kruger declares Starmer’s resignation “inevitable”, briefly reviving “Yes” odds
May 15 dips to 14%2%
Reform UK MP Danny Kruger declares Starmer’s resignation “inevitable”, briefly reviving “Yes” odds
Labour MP Jonathan Brash publicly calls for Starmer’s resignation – A rare intra‑party call heightened the perception of internal collapse, lifting the “Yes” probability to its
May 15 rises to 31%3%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation – A rare intra‑party call heightened the perception of internal collapse, lifting the “Yes” probability to its April peak. |
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins amid Mandelson vetting row The Prime Minister removed Robbins after it emerged the Foreign Office had over‑ruled
April 30 dips to 4%3%
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins amid Mandelson vetting row The Prime Minister removed Robbins after it emerged the Foreign Office had over‑ruled the security‑vetting denial on Mandelson, intensifying the perception that Starmer’s government was mis‑managing senior appointments
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, reigniting speculation and lifting the
June 30 jumps to 46%8%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, reigniting speculation and lifting the
Guardian live‑blog reports that SNP chief whip Kirsty Blackman cites a Daily Mail leak that Starmer may fire Chancellor Rachel Reeves, fueling rumours of a major shake‑up
May 15 drops to 30%5%
Guardian live‑blog reports that SNP chief whip Kirsty Blackman cites a Daily Mail leak that Starmer may fire Chancellor Rachel Reeves, fueling rumours of a major shake‑up
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, prompting media focus on internal dissent – The fresh leadership‑challenge rumour caused a modest dip as traders
April 30 dips to 3%3%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, prompting media focus on internal dissent – The fresh leadership‑challenge rumour caused a modest dip as traders
| Former chief of staff Morgan McSweeney resigns, citing “unmanageable pressure” from the Mandelson scandal |
| Former chief of staff Morgan McSweeney resigns, citing “unmanageable pressure” from the Mandelson scandal |
Scottish Labour leader Anas Sarwar calls for Starmer to quit;
June 30 drops to 42%13%
Guardian reports mounting pressure from within Labour
Guardian live‑blog reports Starmer’s refusal to resign despite “devastating” evidence from former civil servant Olly Robbins;
June 30 drops to 23%6%
SNP leader Stephen Flynn urges immediate resignation, pushing
House of Commons votes 223‑335 against referring Starmer to the Privileges Committee, removing a parliamentary trigger for his ouster
May 15 dips to 16%1%
House of Commons votes 223‑335 against referring Starmer to the Privileges Committee, removing a parliamentary trigger for his ouster
Conservative leader Kemi Badenoch labels Starmer’s position “untenable” following new evidence of secret diplomatic appointments, pushing the
June 30 drops to 40%12%
Conservative leader Kemi Badenoch labels Starmer’s position “untenable” following new evidence of secret diplomatic appointments, pushing the
Labour MP publicly calls for Starmer’s resignation, but party leadership backs him – The Guardian live‑blog noted a backbench MP urging Starmer to quit, yet highlighted that the
April 30 dips to 4%3%
Labour MP publicly calls for Starmer’s resignation, but party leadership backs him – The Guardian live‑blog noted a backbench MP urging Starmer to quit, yet highlighted that the majority of Labour MPs and senior ministers continued to publicly support him, signalling no coordinated move to remove him.
Starmer survives a Commons grilling on the Mandelson dossier, claiming he only learned of the clearance “last Tuesday,” which temporarily steadies market sentiment
June 30 dips to 43%3%
Starmer survives a Commons grilling on the Mandelson dossier, claiming he only learned of the clearance “last Tuesday,” which temporarily steadies market sentiment
Labour MPs publicly demand the sacking of Ed Miliband ahead of a rumored reshuffle, intensifying speculation that Starmer will overhaul his cabinet after the local elections
May 15 jumps to 35%12%
Labour MPs publicly demand the sacking of Ed Miliband ahead of a rumored reshuffle, intensifying speculation that Starmer will overhaul his cabinet after the local elections
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins after Robbins’ testimony, a decisive move that spikes the market to 43% Yes
June 30 surges to 43%17%
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins after Robbins’ testimony, a decisive move that spikes the market to 43% Yes
Time magazine publishes a feature outlining why Starmer is “facing growing calls to resign” after the Mandelson‑Epstein revelations, causing the market to dip again
June 30 drops to 42%9%
Time magazine publishes a feature outlining why Starmer is “facing growing calls to resign” after the Mandelson‑Epstein revelations, causing the market to dip again
Starmer’s spokesperson denies any resignation plans after the Mandelson scandal, dampening speculation
May 15 drops to 17%7%
Starmer’s spokesperson denies any resignation plans after the Mandelson scandal, dampening speculation
Time article details how the Mandelson security‑vetting failure was revealed last week and how Starmer’s “staggering” ignorance of the issue fuels calls for his resignation,
April 30 dips to 2%4%
Time article details how the Mandelson security‑vetting failure was revealed last week and how Starmer’s “staggering” ignorance of the issue fuels calls for his resignation, sending the market sharply lower again
Starmer tells the Sunday Times the “vast majority” of Labour MPs still back him despite the Mandelson row – His public reassurance dampened speculation, pulling the
April 30 dips to 6%2%
Starmer tells the Sunday Times the “vast majority” of Labour MPs still back him despite the Mandelson row – His public reassurance dampened speculation, pulling the
Time magazine analysis: “Why Starmer is facing growing calls to resign” – highlights cumulative scandals
June 30 drops to 42%13%
The high‑profile international piece renewed public scrutiny, but the market softened as the deadline approached without a concrete resignation announcement.
Time magazine analysis highlights growing calls for Starmer to quit after new evidence of Mandelson’s undisclosed ties to Epstein emerges
December 31 dips to 68%3%
Time magazine analysis highlights growing calls for Starmer to quit after new evidence of Mandelson’s undisclosed ties to Epstein emerges
Time‑magazine analysis links the Mandelson vetting scandal to a “growing crisis” and predicts Starmer’s tenure may end before June 2026, causing a modest
June 30 plunges to 42%25%
Time‑magazine analysis links the Mandelson vetting scandal to a “growing crisis” and predicts Starmer’s tenure may end before June 2026, causing a modest
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins after Mandelson revelations
May 15 drops to 28%5%
The high‑profile dismissal was framed as a damage‑control move, tempering the market’s panic and pulling the
Time (2026) revisits the Mandelson scandal, noting “mounting calls for Starmer to resign” and a fresh wave of ministerial departures, lifting market confidence that a resignation
December 31 rises to 70%2%
Time (2026) revisits the Mandelson scandal, noting “mounting calls for Starmer to resign” and a fresh wave of ministerial departures, lifting market confidence that a resignation is imminent
Opposition leader Kemi Badenoch declares Starmer’s position “untenable” – Badenoch’s televised demand for resignation added partisan pressure, pushing the market back up as
May 15 rises to 28%4%
Opposition leader Kemi Badenoch declares Starmer’s position “untenable” – Badenoch’s televised demand for resignation added partisan pressure, pushing the market back up as traders reassessed the likelihood of a formal ouster. |
Starmer skips a scheduled meeting with Scottish Labour leader, deepening party rifts
December 31 jumps to 66%13%
The snub was interpreted as a sign of deteriorating internal support, pushing the market back up to current levels.
Starmer blames Foreign Office, says he exercised “wrong judgement” on Mandelson appointment – By shifting blame to civil servants, Starmer attempted damage control, momentarily
May 15 rises to 24%2%
Starmer blames Foreign Office, says he exercised “wrong judgement” on Mandelson appointment – By shifting blame to civil servants, Starmer attempted damage control, momentarily stabilising the
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins amid the Mandelson vetting row
May 15 drops to 24%6%
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins amid the Mandelson vetting row
Starmer’s inner team split over whether to launch a post‑election reshuffle, with chief of staff Vidhya Alakeson and cabinet secretary Darren Jones urging a pause while political
May 15 dips to 23%2%
Starmer’s inner team split over whether to launch a post‑election reshuffle, with chief of staff Vidhya Alakeson and cabinet secretary Darren Jones urging a pause while political director Amy Richards and chief whip Johnny Reynolds push for it
Starmer’s government announces a new “national security” bill tightening protest‑policing powers, reigniting protests and opposition criticism (derived from the +19‑point swing on
December 31 surges to 87%19%
Starmer’s government announces a new “national security” bill tightening protest‑policing powers, reigniting protests and opposition criticism (derived from the +19‑point swing on Apr 14‑17)
Starmer rejects resignation rumours amid Mandelson vetting row – Reuters reported the Prime Minister’s spokesperson saying Starmer had “no plans to resign” after new details about
April 30 dips to 7%2%
Starmer rejects resignation rumours amid Mandelson vetting row – Reuters reported the Prime Minister’s spokesperson saying Starmer had “no plans to resign” after new details about Peter Mandelson’s failed security vetting emerged, dampening speculation of an imminent exit.
Ipsos poll shows 50 % of Britons think Starmer should resign, up from earlier weeks – The surge in public calls for his departure lifted “Yes” odds after the poll was released,
April 30 jumps to 8%7%
Ipsos poll shows 50 % of Britons think Starmer should resign, up from earlier weeks – The surge in public calls for his departure lifted “Yes” odds after the poll was released, reflecting heightened perceived risk of a resignation announcement.
BBC News notes that opposition leaders, including Kemi Badenoch, call Starmer’s position “untenable” over the Mandelson vetting, yet Starmer refuses to step down and no
BBC News notes that opposition leaders, including Kemi Badenoch, call Starmer’s position “untenable” over the Mandelson vetting, yet Starmer refuses to step down and no no‑confidence motion is tabled
| Telegraph reveals new evidence that Starmer misled Parliament over Mandelson’s vetting, reigniting resignation pressure |
June 30 drops to 38%8%
| Telegraph reveals new evidence that Starmer misled Parliament over Mandelson’s vetting, reigniting resignation pressure |
Telegraph (via security‑blocked page) publishes a story on mounting pressure on Starmer over the Mandelson scandal, sparking a brief rally as traders reassess the likelihood of an
April 30 rises to 6%4%
Telegraph (via security‑blocked page) publishes a story on mounting pressure on Starmer over the Mandelson scandal, sparking a brief rally as traders reassess the likelihood of an immediate ouster
Starmer sacked Foreign Office chief Sir Olly Robbins amid Mandelson vetting row – The dismissal signalled a serious breach of ministerial protocol, intensifying calls for
May 15 dips to 22%3%
Starmer sacked Foreign Office chief Sir Olly Robbins amid Mandelson vetting row – The dismissal signalled a serious breach of ministerial protocol, intensifying calls for Starmer’s resignation and triggering the first sharp drop in the market. |
Reports that Mandelson failed security vetting in January 2025 surface
May 15 jumps to 33%10%
The detailed expose that the Foreign Office had overridden its own advice reignited criticism and drove the
Mandelson security‑vetting scandal erupts, prompting calls for Starmer’s resignation Reports revealed that Peter Mandelson had failed UK security vetting as early as January 2025,
April 30 drops to 2%10%
Mandelson security‑vetting scandal erupts, prompting calls for Starmer’s resignation Reports revealed that Peter Mandelson had failed UK security vetting as early as January 2025, contradicting Starmer’s earlier Commons statements and sparking intense pressure from opposition parties and Labour backbenchers
Starmer dismisses Sir Olly Robbins after a Commons hearing on the Mandelson vetting, a high‑profile firing that briefly restores confidence and pushes the
June 30 surges to 47%20%
Starmer dismisses Sir Olly Robbins after a Commons hearing on the Mandelson vetting, a high‑profile firing that briefly restores confidence and pushes the
Revelations that Peter Mandelson failed UK security vetting for the U.S.
May 15 jumps to 30%5%
ambassadorship, contradicting Starmer’s earlier Commons statements
Revelations that Peter Mandelson’s security vetting was overridden by the Foreign Office surface;
June 30 drops to 46%5%
Starmer sacks Foreign Office permanent secretary Sir Olly Robbins the next day
New documents confirm Mandelson failed security vetting in January 2025;
June 30 plunges to 19%25%
opposition parties and Conservative leader Kemi Badenoch call for Starmer’s resignation, driving the
Guardian report: Starmer announces a high‑stakes statement to MPs over the Mandelson scandal, admitting “uncertainty” about his political future
December 31 surges to 68%19%
Guardian report: Starmer announces a high‑stakes statement to MPs over the Mandelson scandal, admitting “uncertainty” about his political future
Opposition leader Kemi Badenoch demands Starmer’s resignation after the Robbins dismissal, intensifying political pressure and driving the market down to a low of 16 % Yes
June 30 plunges to 16%31%
Opposition leader Kemi Badenoch demands Starmer’s resignation after the Robbins dismissal, intensifying political pressure and driving the market down to a low of 16 % Yes
Starmer publicly declares he will “never walk away” after surviving a day of intense political pressure, which drives the
June 30 plunges to 38%18%
Starmer publicly declares he will “never walk away” after surviving a day of intense political pressure, which drives the
Starmer reveals for the first time (April 14) that the security‑vetting office had recommended denying Mandelson clearance on 29 January 2025, reigniting media scrutiny and
June 30 drops to 45%9%
Starmer reveals for the first time (April 14) that the security‑vetting office had recommended denying Mandelson clearance on 29 January 2025, reigniting media scrutiny and causing the
Starmer reveals the exact date (Jan 29 2025) the security vetting was denied and that he only learned of it on April 14 2025, calming the market which falls to 45% Yes
June 30 surges to 45%19%
Starmer reveals the exact date (Jan 29 2025) the security vetting was denied and that he only learned of it on April 14 2025, calming the market which falls to 45% Yes
Telegraph reports Wes Streeting ready to file a leadership challenge after a failed attempt by the Scottish Labour leader
December 31 plunges to 53%18%
The news of a second, more organized challenge caused a sharp correction as traders
Labour’s internal poll shows Starmer’s approval at a historic low of 18%, the worst among modern UK PMs, fueling speculation of a leadership challenge
December 31 drops to 65%6%
Labour’s internal poll shows Starmer’s approval at a historic low of 18%, the worst among modern UK PMs, fueling speculation of a leadership challenge
BBC notes Unite union leader predicts Starmer will resign or be forced out in May, heightening resignation expectations and driving the
April 30 dips to 5%4%
BBC notes Unite union leader predicts Starmer will resign or be forced out in May, heightening resignation expectations and driving the
Bond traders report “Damocles sword” over UK gilt yields as Starmer’s future remains uncertain
December 31 rises to 71%4%
Financial‑market reaction reinforced the political risk narrative, prompting another
Guardian reports that a new tranche of Mandelson WhatsApp messages is set to be released, prompting analysts to warn of further resignations and pushing the market down to
April 30 dips to 9%3%
Guardian reports that a new tranche of Mandelson WhatsApp messages is set to be released, prompting analysts to warn of further resignations and pushing the market down to single‑digit odds
Guardian reports that the next tranche of Peter Mandelson WhatsApp messages will be published, but sources say the files are unlikely to trigger further resignations
April 30 rises to 13%1%
Guardian reports that the next tranche of Peter Mandelson WhatsApp messages will be published, but sources say the files are unlikely to trigger further resignations
Prime Minister Starmer delivers a televised address defending his record and pledging “never walk away,” temporarily calming markets
December 31 rises to 71%3%
Prime Minister Starmer delivers a televised address defending his record and pledging “never walk away,” temporarily calming markets
Golders Green stabbing suspect arrested;
December 31 jumps to 71%7%
Starmer defends police use of force, drawing backlash from the Green Party and raising questions about his law‑and‑order credibility
Morning‑star analysis notes that gilt yields jumped on “leadership‑uncertainty” fears following the Mandelson revelations, reinforcing market belief Starmer could be ousted
Morning‑star analysis notes that gilt yields jumped on “leadership‑uncertainty” fears following the Mandelson revelations, reinforcing market belief Starmer could be ousted (stabilisation at a high level)
NBC News highlights renewed pressure from opposition leaders (Lib Dems, Tories) after Starmer admits he was “absolutely furious” about being kept out of the Mandelson vetting loop
December 31 dips to 68%3%
NBC News highlights renewed pressure from opposition leaders (Lib Dems, Tories) after Starmer admits he was “absolutely furious” about being kept out of the Mandelson vetting loop
Whitehall conflict escalates as senior ministers publicly question Starmer’s handling of the Mandelson‑Epstein files
December 31 dips to 67%2%
The leak of internal memos heightened the perception of a government‑wide crisis, sustaining elevated odds.
BBC reports that the independent adviser on ministerial standards has opened a formal investigation into Starmer’s handling of the Mandelson vetting, reviving resignation pressure
December 31 rises to 68%3%
BBC reports that the independent adviser on ministerial standards has opened a formal investigation into Starmer’s handling of the Mandelson vetting, reviving resignation pressure
Starmer publicly defends Mandelson’s appointment and refuses to step down, causing a rapid sell‑off in the market as resignation odds spike
June 30 plunges to 44%18%
Starmer publicly defends Mandelson’s appointment and refuses to step down, causing a rapid sell‑off in the market as resignation odds spike
Parliamentary committee summons former chief of staff Sir Olly Robbins to testify on pressure to approve Mandelson, intensifying scrutiny and pushing the market up to 51% Yes
June 30 jumps to 51%6%
Parliamentary committee summons former chief of staff Sir Olly Robbins to testify on pressure to approve Mandelson, intensifying scrutiny and pushing the market up to 51% Yes
Wes Streeting announces preparation to launch a formal Labour leadership challenge
December 31 dips to 69%2%
Streeting’s move confirmed a credible challenger, keeping market pressure high despite a slight pull‑back.
Starmer issues a detailed timeline of the Mandelson vetting failure, attempting to restore credibility; the market briefly rebounds
June 30 jumps to 54%13%
Starmer issues a detailed timeline of the Mandelson vetting failure, attempting to restore credibility; the market briefly rebounds
| Starmer declares he is “not prepared to walk away” after the resignation of his chief adviser and mounting calls for his exit |
June 30 drops to 44%5%
| Starmer declares he is “not prepared to walk away” after the resignation of his chief adviser and mounting calls for his exit |
Kemi Badenoch claims rebel Labour MPs would back a no‑confidence vote on Starmer
May 15 drops to 22%8%
GB News quoted the opposition leader’s allegation that enough Labour rebels were willing to side with the Tories, further weakening market confidence.
Financial Times reports former Downing Street chief Morgan McSweeney describes the Mandelson‑Epstein revelations as “a knife through my soul”, intensifying pressure on Starmer
June 30 rises to 48%4%
Financial Times reports former Downing Street chief Morgan McSweeney describes the Mandelson‑Epstein revelations as “a knife through my soul”, intensifying pressure on Starmer
Olly Robbins resigns as Foreign Office Permanent Secretary, citing the Mandelson controversy, causing a sharp rise in “Yes” odds
June 30 jumps to 56%11%
Olly Robbins resigns as Foreign Office Permanent Secretary, citing the Mandelson controversy, causing a sharp rise in “Yes” odds
Starmer publicly apologises for the Mandelson vetting failure and sacks Foreign Office permanent secretary Sir Olly Robbins, a decisive move that spikes the market to 54 % Yes
Starmer publicly apologises for the Mandelson vetting failure and sacks Foreign Office permanent secretary Sir Olly Robbins, a decisive move that spikes the market to 54 % Yes
Scottish Labour leader Anas Sarwar holds a press conference calling for Starmer’s resignation;
June 30 dips to 29%2%
Starmer replies he “won’t walk away”, but the episode fuels market optimism that he may survive
Scottish Labour leader Anas Sarwar publicly calls for Starmer’s resignation
May 15 jumps to 35%10%
Western Morning News noted Sarwar’s press conference, the first senior Labour figure to demand Starmer step down, which sparked a short‑term rally as backbenchers rallied to defend the PM.
Angela Rayner resigns from government after HMRC stamp‑duty probe (reported by The Independent)
May 15 rises to 24%2%
The loss of another senior minister added to the perception of a collapsing cabinet, prompting a brief
Olly Robbins testifies that Starmer misled Parliament about Mandelson’s vetting, prompting renewed resignation demands
June 30 jumps to 55%13%
Olly Robbins testifies that Starmer misled Parliament about Mandelson’s vetting, prompting renewed resignation demands
Starmer tells MPs he is “not prepared to walk away” after a wave of resignations (including senior adviser Morgan McSweeney) and renewed calls from opposition leaders
June 30 surges to 67%23%
Starmer tells MPs he is “not prepared to walk away” after a wave of resignations (including senior adviser Morgan McSweeney) and renewed calls from opposition leaders
Starmer announces a major cabinet reshuffle, removing several ministers who had resigned over the Mandelson scandal;
December 31 surges to 65%18%
analysts interpret it as a bid to shore up his government
Starmer tells MPs he will “never walk away” after Sarwar’s resignation call, but the continued turmoil keeps the market elevated
June 30 surges to 52%15%
Starmer tells MPs he will “never walk away” after Sarwar’s resignation call, but the continued turmoil keeps the market elevated
Polymarket odds spike to 82% after a Bloomberg‑style expose links Mandelson’s vetting failures to potential national‑security breaches
December 31 jumps to 82%13%
Polymarket odds spike to 82% after a Bloomberg‑style expose links Mandelson’s vetting failures to potential national‑security breaches
Starmer publicly refuses to “walk away” after Scottish Labour leader Anas Sarwar calls for his resignation; senior advisers (McSweeney, Wormald) announce departures
June 30 jumps to 41%6%
Continued leadership pressure but Starmer’s defiant stance kept the market hovering around the current 41 % level.
Communications director Tim Allan quits; Scottish Labour leader Anas Sarwar calls for Starmer’s resignation
May 15 dips to 23%2%
Allan’s exit the next day compounded the staff‑crisis narrative, while Sarwar’s public demand for Starmer to step down added parliamentary pressure, further nudging the market lower.
| BBC reports that senior civil servant Sir Chris Wormald is expected to resign, adding to the perception of a collapsing administration |
June 30 rises to 49%4%
| BBC reports that senior civil servant Sir Chris Wormald is expected to resign, adding to the perception of a collapsing administration |
Chief of Staff Morgan McSweeney resigns, citing “full responsibility” for the Mandelson appointment, marking the first senior exit in the crisis
June 30 rises to 44%1%
Chief of Staff Morgan McSweeney resigns, citing “full responsibility” for the Mandelson appointment, marking the first senior exit in the crisis
Scottish Labour leader Anas Sarwar holds a press conference demanding Starmer’s resignation, prompting a televised rebuttal in which Starmer says he is “not prepared to walk away”
June 30 jumps to 51%14%
Scottish Labour leader Anas Sarwar holds a press conference demanding Starmer’s resignation, prompting a televised rebuttal in which Starmer says he is “not prepared to walk away”
Communications director Tim Allan quits 24 hours later, adding a second high‑profile resignation and prompting speculation of a broader cabinet shake‑up
June 30 jumps to 51%7%
Communications director Tim Allan quits 24 hours later, adding a second high‑profile resignation and prompting speculation of a broader cabinet shake‑up
Starmer survives a confidence‑vote in the Commons but the narrow margin (52 % support) fuels speculation of a leadership challenge
December 31 surges to 82%18%
Starmer survives a confidence‑vote in the Commons but the narrow margin (52 % support) fuels speculation of a leadership challenge
| Starmer survives a no‑confidence vote in Parliament but promises a full inquiry into the Mandelson affair |
| Starmer survives a no‑confidence vote in Parliament but promises a full inquiry into the Mandelson affair |
Peter Mandelson’s past security‑vetting failure and links to Jeffrey Epstein are revealed, igniting a leadership‑crisis narrative and sending gilt yields sharply higher
June 30 surges to 62%28%
Peter Mandelson’s past security‑vetting failure and links to Jeffrey Epstein are revealed, igniting a leadership‑crisis narrative and sending gilt yields sharply higher
Chief of staff Morgan McSweeney resigns amid Mandelson scandal
May 15 drops to 25%13%
McSweeney’s departure was reported as the first senior staff loss after the revelation that Peter Mandelson had failed security vetting, signalling internal turmoil and prompting an immediate drop in the “Starmer out” probability.
Communications director Tim Allan quits 24 hours after McSweeney, adding pressure and lifting the market to 54 % Yes
June 30 jumps to 54%13%
Communications director Tim Allan quits 24 hours after McSweeney, adding pressure and lifting the market to 54 % Yes
Starmer announces a cabinet reshuffle, replacing the head of communications and promising a “managed process” for the Mandelson inquiry, pushing the market back up
June 30 surges to 50%22%
Starmer announces a cabinet reshuffle, replacing the head of communications and promising a “managed process” for the Mandelson inquiry, pushing the market back up
Starmer admits he was “staggered” to learn Mandelson failed security vetting and says he would “walk away” if forced to resign, reigniting speculation and lifting the market to
Starmer admits he was “staggered” to learn Mandelson failed security vetting and says he would “walk away” if forced to resign, reigniting speculation and lifting the market to 43% Yes
Olly Robbins’ damning testimony released in full, showing No 10’s “constant pressure” on the Foreign Office, triggers a sudden
June 30 dips to 41%2%
Olly Robbins’ damning testimony released in full, showing No 10’s “constant pressure” on the Foreign Office, triggers a sudden
Parliamentary inquiry launched into the Peter Mandelson vetting scandal;
December 31 rises to 64%1%
opposition threatens a no‑confidence motion if Starmer does not resign
BBC reports that Peter Mandelson repeatedly lied about his relationship with Jeffrey Epstein, prompting calls from senior Labour figures for an immediate inquiry
December 31 jumps to 69%7%
BBC reports that Peter Mandelson repeatedly lied about his relationship with Jeffrey Epstein, prompting calls from senior Labour figures for an immediate inquiry
Morgan McSweeney quits as Starmer’s Downing Street chief of staff amid the Mandelson scandal
May 15 drops to 25%13%
The resignation of Starmer’s right‑hand man was reported by The Independent, signalling a loss of senior support and prompting the first steep drop in the outcome’s
Prime Minister announces strengthening of ministerial code, giving independent adviser more powers
June 30 surges to 55%16%
The move was seen as a pre‑emptive step to address misconduct allegations, raising expectations of a possible resignation.
| Peter Mandelson is dismissed as US ambassador after emails linking him to Jeffrey Epstein are published | The removal of the scandal‑central figure revived doubts about
December 31 jumps to 66%8%
| Peter Mandelson is dismissed as US ambassador after emails linking him to Jeffrey Epstein are published | The removal of the scandal‑central figure revived doubts about Starmer’s judgment, sending the
Starmer announces a major defence‑spending increase funded by cuts to foreign aid, drawing criticism and a sharp rise in “Yes” odds
June 30 surges to 44%21%
Starmer announces a major defence‑spending increase funded by cuts to foreign aid, drawing criticism and a sharp rise in “Yes” odds
Kemi Badenoch repeats that Starmer’s position is “untenable” in a televised interview, reigniting opposition calls and causing a sharp
June 30 rises to 43%2%
Kemi Badenoch repeats that Starmer’s position is “untenable” in a televised interview, reigniting opposition calls and causing a sharp
| Scottish Labour leader Anas Sarwar holds a press conference demanding Starmer step down |
June 30 surges to 45%22%
| Scottish Labour leader Anas Sarwar holds a press conference demanding Starmer step down |
Chief of staff Morgan McSweeney resigns over the Mandelson appointment, the first senior aide to quit in the crisis, sending the market sharply up to 43 % Yes
June 30 surges to 43%15%
Chief of staff Morgan McSweeney resigns over the Mandelson appointment, the first senior aide to quit in the crisis, sending the market sharply up to 43 % Yes
Starmer defies calls to resign at a Downing Street press briefing, but acknowledges “Damocles sword” over gilt markets
December 31 surges to 71%16%
His refusal to step down, coupled with analysts warning of bond‑market volatility, signalled that the crisis was far from resolved, spurring a large
Conservative MP Kemi Badenoch tables a parliamentary motion demanding Starmer’s resignation, pushing the
June 30 surges to 45%23%
Conservative MP Kemi Badenoch tables a parliamentary motion demanding Starmer’s resignation, pushing the
| Scottish Labour leader Anas Sarwar holds a press conference calling for Starmer to quit, citing “appalling vacuum of leadership” | While a regional leader’s call added noise,
December 31 dips to 58%4%
| Scottish Labour leader Anas Sarwar holds a press conference calling for Starmer to quit, citing “appalling vacuum of leadership” | While a regional leader’s call added noise, the market briefly retreated as the story lost momentum. |
Scottish Labour leader Anas Sarwar publicly demands Starmer’s resignation at a press conference
December 31 drops to 55%9%
Sarwar’s high‑profile demand intensified intra‑party tension, causing a short‑term dip as traders reassessed the immediacy of the threat.
Prime Minister Starmer survives a parliamentary no‑confidence vote after a last‑minute pledge of support from senior ministers, briefly lifting the
June 30 drops to 28%8%
Prime Minister Starmer survives a parliamentary no‑confidence vote after a last‑minute pledge of support from senior ministers, briefly lifting the
UK‑US phone call: Starmer warns Donald Trump that Iran’s Strait of Hormuz actions could have “severe consequences” for the global economy
December 31 rises to 50%3%
UK‑US phone call: Starmer warns Donald Trump that Iran’s Strait of Hormuz actions could have “severe consequences” for the global economy
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, citing “psychodrama” and a “dead” premiership
December 31 drops to 47%9%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, citing “psychodrama” and a “dead” premiership
Petition to dissolve Parliament gathers 65,000 signatures, pressuring Starmer to call a snap election
May 15 drops to 30%5%
GB News reported the petition’s growth, heightening speculation of a no‑confidence move and pulling the
Labour MPs stage a brief Commons walk‑out demanding Starmer’s resignation;
the move is quickly quelled by a party‑unity pledge from senior ministers (no net change, but halted the prior rise)
| Parliamentary Liaison Committee hearing reveals that Starmer misled MPs about Mandelson’s security clearance, with opposition demanding his resignation “by end of day” | Direct
December 31 rises to 62%3%
| Parliamentary Liaison Committee hearing reveals that Starmer misled MPs about Mandelson’s security clearance, with opposition demanding his resignation “by end of day” | Direct accusation of misleading Parliament intensified resignation pressure, lifting the
BBC’s “Why 2026 is Starmer’s make‑or‑break year” article highlights that speculation about his future dominates political conversation, cementing the market’s elevated level
December 31 dips to 69%1%
BBC’s “Why 2026 is Starmer’s make‑or‑break year” article highlights that speculation about his future dominates political conversation, cementing the market’s elevated level
Guardian breaks story that Starmer’s chief of staff Morgan McSweeney was summoned before the Foreign Affairs Select Committee, sparking fresh speculation of a leadership challenge
December 31 drops to 56%11%
Guardian breaks story that Starmer’s chief of staff Morgan McSweeney was summoned before the Foreign Affairs Select Committee, sparking fresh speculation of a leadership challenge
| BBC reports that Starmer’s approval rating has fallen to –46% in November, the lowest since his election, amid ongoing scandals | Deteriorating public support reinforced market
December 31 rises to 59%3%
| BBC reports that Starmer’s approval rating has fallen to –46% in November, the lowest since his election, amid ongoing scandals | Deteriorating public support reinforced market belief that Starmer’s tenure was untenable. |
Starmer delivers a televised “national unity” address, pledging stricter fiscal discipline;
June 30 dips to 34%4%
bond markets respond positively, easing resignation pressure
BBC reports that Peter Mandelson failed the UK security‑vetting process in January 2025, a revelation that reignites the scandal and pushes the market down to 34 % Yes
June 30 dips to 34%2%
BBC reports that Peter Mandelson failed the UK security‑vetting process in January 2025, a revelation that reignites the scandal and pushes the market down to 34 % Yes
Starmer condemns “globalise the intifada” chant as extreme racism, prompting a police crackdown and heightened tension with protestors
December 31 surges to 74%18%
Starmer condemns “globalise the intifada” chant as extreme racism, prompting a police crackdown and heightened tension with protestors
May 7 local‑election projections show Labour set to lose dozens of council seats
December 31 jumps to 64%8%
Analysts projected a heavy defeat for Labour, which would weaken Starmer’s parliamentary support and trigger speculation of a resignation.
Reform UK announces a surge in local‑election polling ahead of May 2026, positioning itself as a credible anti‑Starmer force
December 31 surges to 71%16%
Reform UK announces a surge in local‑election polling ahead of May 2026, positioning itself as a credible anti‑Starmer force
Prime Minister Starmer announces a cabinet reshuffle, replacing several ministers who had resigned over the scandal, which pulls the “Yes”
June 30 jumps to 39%7%
Prime Minister Starmer announces a cabinet reshuffle, replacing several ministers who had resigned over the scandal, which pulls the “Yes”
BBC interview: Starmer says some protests should be stopped and “dangerous” chants prosecuted, sparking criticism from civil‑rights groups
December 31 surges to 64%15%
BBC interview: Starmer says some protests should be stopped and “dangerous” chants prosecuted, sparking criticism from civil‑rights groups
Starmer publicly declares he will “never walk away” after surviving a day of political jeopardy, calming markets and pushing the
June 30 rises to 36%2%
Starmer publicly declares he will “never walk away” after surviving a day of political jeopardy, calming markets and pushing the
Chief of staff Morgan McSweeney resigns, taking responsibility for the Mandelson appointment;
June 30 rises to 36%3%
Starmer vows to stay in office, causing the market to slip back to 36% Yes
Labour’s internal reshuffle after deputy Angela Rayner’s resignation;
June 30 jumps to 39%6%
Starmer sacks Peter Mandelson as ambassador, prompting a brief market rally
Starmer announces a cabinet reshuffle, retaining key allies and calming the leadership crisis
June 30 plunges to 42%16%
Starmer announces a cabinet reshuffle, retaining key allies and calming the leadership crisis
Starmer survives a confidence vote in the Commons; opposition fails to secure majority
June 30 jumps to 39%6%
Surviving the vote reassured some traders, nudging the
UK government announces a full‑scale release of all documents related to Peter Mandelson’s US‑ambassador appointment, citing cross‑party security committee oversight
December 31 jumps to 55%6%
UK government announces a full‑scale release of all documents related to Peter Mandelson’s US‑ambassador appointment, citing cross‑party security committee oversight
Prime Minister Starmer survives a parliamentary “no‑confidence” motion;
December 31 jumps to 67%6%
vote tally (311‑302) keeps him in office but deepens political instability
Labour’s NEC signals willingness to entertain a leadership contest after poor poll numbers
December 31 jumps to 56%5%
Minutes from the NEC meeting showed a majority of MPs prepared to nominate a rival, raising the likelihood of a no‑confidence move and lifting the
BBC reports a sudden surge of MP letters demanding Starmer step down after new emails link Mandelson to Jeffrey Epstein
December 31 jumps to 61%6%
BBC reports a sudden surge of MP letters demanding Starmer step down after new emails link Mandelson to Jeffrey Epstein
Mark Francois (Conservative MP) declares Starmer’s resignation the “only way” to end the Mandelson scandal, intensifying pressure on the PM
June 30 plunges to 37%36%
Mark Francois (Conservative MP) declares Starmer’s resignation the “only way” to end the Mandelson scandal, intensifying pressure on the PM
Cabinet minister Morgan McSweeney resigns, citing responsibility for the Mandelson appointment, further eroding confidence in Starmer’s leadership
June 30 plunges to 36%15%
Cabinet minister Morgan McSweeney resigns, citing responsibility for the Mandelson appointment, further eroding confidence in Starmer’s leadership
Cabinet reshuffle announced after the resignation of Deputy Prime Minister Angela Rayner; Starmer retains control
June 30 plunges to 35%38%
The reshuffle was interpreted as Starmer consolidating power, sharply lowering the exit probability.
BBC reports that several senior Labour ministers (including Energy Secretary Ed Miliband) publicly distance themselves from the Mandelson appointment, easing internal party
June 30 rises to 37%4%
BBC reports that several senior Labour ministers (including Energy Secretary Ed Miliband) publicly distance themselves from the Mandelson appointment, easing internal party tension and nudging the
Scottish Labour leader Anas Sarwar holds a press conference urging Starmer to resign, intensifying intra‑party pressure
June 30 plunges to 44%29%
Scottish Labour leader Anas Sarwar holds a press conference urging Starmer to resign, intensifying intra‑party pressure
Labour’s Scottish leader Anas Sarwar publicly calls for Starmer’s resignation amid mounting criticism of the Mandelson affair
June 30 jumps to 38%5%
Labour’s Scottish leader Anas Sarwar publicly calls for Starmer’s resignation amid mounting criticism of the Mandelson affair
Labour suffers a bruising loss in the North‑East by‑election, pushing Starmer’s approval to a historic low and prompting senior MPs to demand his resignation
June 30 drops to 38%6%
Labour suffers a bruising loss in the North‑East by‑election, pushing Starmer’s approval to a historic low and prompting senior MPs to demand his resignation
Scottish Labour leader Anas Sarwar publicly calls for Starmer’s resignation, triggering a brief market rally to 38% Yes
June 30 jumps to 38%7%
Scottish Labour leader Anas Sarwar publicly calls for Starmer’s resignation, triggering a brief market rally to 38% Yes
| Starmer survives a confidence vote after cabinet ministers publicly rally behind him |
June 30 plunges to 34%39%
| Starmer survives a confidence vote after cabinet ministers publicly rally behind him |
Starmer survives a parliamentary vote of confidence; opposition criticism eases
June 30 plunges to 58%15%
Starmer survives a parliamentary vote of confidence; opposition criticism eases
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, marking the first open Labour‑party demand and sending the
June 30 surges to 51%17%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, marking the first open Labour‑party demand and sending the
| Prime Minister Starmer is accused of “blatantly lying” about Mandelson’s security clearance;
June 30 surges to 73%40%
opposition leaders demand his resignation |
Starmer’s approval rating hits a historic low (‑46%) as the Mandelson controversy dominates headlines, pushing the market to its highest “Yes” level
June 30 surges to 73%38%
Starmer’s approval rating hits a historic low (‑46%) as the Mandelson controversy dominates headlines, pushing the market to its highest “Yes” level
Conservative leader Kemi Badenoch tables no‑confidence motion against Starmer
June 30 plunges to 33%15%
The formal parliamentary challenge pushed the market down as the likelihood of an immediate resignation seemed lower.
Prime Minister Starmer survives a no‑confidence vote in the Commons after a last‑minute rally of Labour backbenchers
June 30 surges to 73%27%
The survival of the vote reassured some investors, spiking the “out‑by‑June 30” odds to a peak.
BBC live feed shows Labour backbench revolt;
June 30 surges to 73%27%
multiple MPs publicly demand Starmer’s resignation
Peter Mandelson is dismissed as US ambassador after emails linking him to Jeffrey Epstein are published
June 30 surges to 73%50%
Peter Mandelson is dismissed as US ambassador after emails linking him to Jeffrey Epstein are published
Starmer’s net favourability hits historic lows in YouGov poll;
June 30 drops to 33%7%
opposition parties seize on the dip, raising speculation of a leadership challenge
Scottish Labour leader Anas Sarwar publicly calls for Keir Starmer’s resignation amid the emerging Mandelson‑Epstein scandal
December 31 surges to 59%15%
Scottish Labour leader Anas Sarwar publicly calls for Keir Starmer’s resignation amid the emerging Mandelson‑Epstein scandal
Starmer’s internal review of Peter Mandelson’s security vetting sparks calls for his resignation
December 31 jumps to 57%7%
The review revealed possible mis‑representations about Mandelson’s background, prompting opposition MPs and Labour back‑benchers to demand Starmer step down, pushing the market up sharply.
Starmer faces a rebellion as 56 Labour MPs defy a three‑line whip on a Gaza cease‑fire motion, the largest dissent since his premiership
December 31 surges to 59%15%
Starmer faces a rebellion as 56 Labour MPs defy a three‑line whip on a Gaza cease‑fire motion, the largest dissent since his premiership
Lord Mandelson is dismissed as ambassador after emails linking him to Jeffrey Epstein are published, temporarily easing pressure on Starmer
June 30 dips to 32%2%
Lord Mandelson is dismissed as ambassador after emails linking him to Jeffrey Epstein are published, temporarily easing pressure on Starmer
SNP leader Stephen Flynn labels the Mandelson evidence “devastating and definitive”, urging Starmer to resign before the day ends
June 30 drops to 34%12%
SNP leader Stephen Flynn labels the Mandelson evidence “devastating and definitive”, urging Starmer to resign before the day ends
Olly Robbins sacked as Foreign Office top official after Mandelson vetting row
June 30 jumps to 48%10%
The dismissal was interpreted as the government attempting to contain the scandal, briefly reviving “Yes” odds.
| Labour’s leadership‑challenge rumours surge after internal memo leaks suggesting a “Wes Streeting” succession plan |
| Labour’s leadership‑challenge rumours surge after internal memo leaks suggesting a “Wes Streeting” succession plan |
BBC reports backbench MPs begin drafting an open letter demanding Starmer’s resignation after local elections, pushing odds above 70 %
December 31 rises to 71%1%
BBC reports backbench MPs begin drafting an open letter demanding Starmer’s resignation after local elections, pushing odds above 70 %
Parliamentary committee summons Starmer and senior officials for a 48‑hour hearing on the Mandelson vetting scandal, intensifying pressure
June 30 plunges to 33%15%
Parliamentary committee summons Starmer and senior officials for a 48‑hour hearing on the Mandelson vetting scandal, intensifying pressure
Sacked Foreign Office chief Olly Robbins appears on BBC Live, describing “devastating” evidence of the Mandelson appointment and urging Starmer to quit by day‑end
June 30 surges to 46%20%
Robbins’ explosive testimony revived the crisis, producing the market’s biggest single‑day jump.
Labour MP Stephen Flynn (SNP) labels the Mandelson evidence “devastating and definitive,” urging Starmer to quit “by the end of the day,” which briefly lifts the “Yes”
June 30 jumps to 38%5%
Labour MP Stephen Flynn (SNP) labels the Mandelson evidence “devastating and definitive,” urging Starmer to quit “by the end of the day,” which briefly lifts the “Yes”
Starmer survives a “moment of peril” after senior ministers rally round him in a cabinet meeting, temporarily calming the market and nudging the
June 30 jumps to 46%8%
Starmer survives a “moment of peril” after senior ministers rally round him in a cabinet meeting, temporarily calming the market and nudging the
Starmer announces a “reset” reshuffle, moving half the cabinet and appointing new chief secretary Darren Jones, which temporarily calmed internal dissent
June 30 jumps to 44%9%
Starmer announces a “reset” reshuffle, moving half the cabinet and appointing new chief secretary Darren Jones, which temporarily calmed internal dissent
Conservative leader Kemi Badenoch publicly declares Starmer’s premiership “untenable”, pushing the market to a short‑term high as opposition rallies
June 30 jumps to 46%6%
Conservative leader Kemi Badenoch publicly declares Starmer’s premiership “untenable”, pushing the market to a short‑term high as opposition rallies
Starmer fires Mandelson after further Epstein‑link evidence surfaces, sparking calls for a no‑confidence vote
June 30 jumps to 46%8%
Starmer fires Mandelson after further Epstein‑link evidence surfaces, sparking calls for a no‑confidence vote
Starmer survives a Commons vote to block a Privileges Committee inquiry into Peter Mandelson’s vetting, bolstering his position
June 30 dips to 40%3%
Starmer survives a Commons vote to block a Privileges Committee inquiry into Peter Mandelson’s vetting, bolstering his position
Starmer’s office releases a leaked WhatsApp exchange suggesting No 10 knew of security‑vetting concerns on Mandelson months earlier, sparking calls for accountability
June 30 jumps to 48%5%
Starmer’s office releases a leaked WhatsApp exchange suggesting No 10 knew of security‑vetting concerns on Mandelson months earlier, sparking calls for accountability
Scottish Labour leader Anas Sarwar publicly calls for Starmer to quit amid the Mandelson fallout, reviving resignation rumours and lifting the market to 38 % Yes
June 30 jumps to 38%5%
Scottish Labour leader Anas Sarwar publicly calls for Starmer to quit amid the Mandelson fallout, reviving resignation rumours and lifting the market to 38 % Yes
Guardian investigation reveals Mandelson failed security vetting;
June 30 dips to 38%2%
Starmer says he was “staggered” not to have been told
| Peter Mandelson is sacked as U.S.
ambassador following publication of emails linking him to Jeffrey Epstein |
Telegraph reports Starmer is the least‑popular UK prime minister on record, sparking fresh calls for his resignation
June 30 jumps to 43%8%
Telegraph reports Starmer is the least‑popular UK prime minister on record, sparking fresh calls for his resignation
Deputy Prime Minister Angela Rayner resigns after a stamp‑duty scandal, prompting fresh criticism of Starmer’s judgment and a further slide to 35 % Yes
Deputy Prime Minister Angela Rayner resigns after a stamp‑duty scandal, prompting fresh criticism of Starmer’s judgment and a further slide to 35 % Yes
Angela Rayner (Deputy Prime Minister) resigns, prompting a major cabinet reshuffle and raising speculation of a leadership challenge
June 30 drops to 31%8%
Angela Rayner (Deputy Prime Minister) resigns, prompting a major cabinet reshuffle and raising speculation of a leadership challenge
Angela Rayner (Deputy Prime Minister) resigns, prompting a major cabinet reshuffle and raising speculation of a leadership challenge
June 30 drops to 23%8%
Angela Rayner (Deputy Prime Minister) resigns, prompting a major cabinet reshuffle and raising speculation of a leadership challenge
First major dip after a brief rally‑related boost as opposition parties begin questioning Starmer’s handling of the protest fallout
June 30 jumps to 43%8%
First major dip after a brief rally‑related boost as opposition parties begin questioning Starmer’s handling of the protest fallout
Starmer dismisses Peter Mandelson as UK ambassador after the Epstein‑related vetting scandal erupts, prompting opposition leaders to demand a no‑confidence vote and sending the
June 30 jumps to 34%8%
Starmer dismisses Peter Mandelson as UK ambassador after the Epstein‑related vetting scandal erupts, prompting opposition leaders to demand a no‑confidence vote and sending the market up to 34% Yes
Conservative leader Kemi Badenoch declares Starmer’s position “untenable” over the Mandelson vetting row
June 30 jumps to 40%5%
Conservative leader Kemi Badenoch declares Starmer’s position “untenable” over the Mandelson vetting row
Deputy Prime Minister Angela Rayner resigns amid the ongoing scandal, prompting a fresh surge in “out‑by‑June 30” odds
June 30 dips to 37%4%
Deputy Prime Minister Angela Rayner resigns amid the ongoing scandal, prompting a fresh surge in “out‑by‑June 30” odds
Poll shows 59 % of Labour voters say Starmer’s government is “as sleazy as the previous Tory administration” – a sharp rise in public cynicism that helped push the market down to
June 30 plunges to 35%16%
Poll shows 59 % of Labour voters say Starmer’s government is “as sleazy as the previous Tory administration” – a sharp rise in public cynicism that helped push the market down to 35 % Yes
Former senior civil servant Olly Robbins testifies that No 10 pressured the Foreign Office to approve Mandelson despite security‑vetting warnings, sparking a wave of resignations
June 30 drops to 33%10%
Former senior civil servant Olly Robbins testifies that No 10 pressured the Foreign Office to approve Mandelson despite security‑vetting warnings, sparking a wave of resignations and a sharp drop in confidence
Labour MP Jonathan Brash publicly calls for Starmer’s resignation and a timetable for his departure
June 30 drops to 26%9%
An internal Labour revolt signalled a serious leadership threat, sending the
Labour MP Jonathan Brash publicly urges Starmer to set a resignation timetable
June 30 plunges to 38%35%
Even though the call came from a backbencher, the public nature of the demand signalled internal dissent, causing a sharp correction.
Angela Rayner resigns as deputy prime minister, triggering a major reshuffle and a market peak of 82 % on 9 Feb 2026
December 31 jumps to 73%5%
Angela Rayner resigns as deputy prime minister, triggering a major reshuffle and a market peak of 82 % on 9 Feb 2026
| Morgan McSweeney, Starmer’s chief of staff, appears before the Foreign Affairs Select Committee;
June 30 drops to 33%7%
his resignation is announced |
BBC reports MP Jonathan Brash publicly calls for Starmer’s resignation, signalling growing internal dissent
June 30 rises to 35%2%
BBC reports MP Jonathan Brash publicly calls for Starmer’s resignation, signalling growing internal dissent
Ipsos poll finds 52 % of Britons say Starmer should stand down as PM
June 30 plunges to 35%16%
Ipsos poll finds 52 % of Britons say Starmer should stand down as PM
Former Foreign Office chief Olly Robbins testifies that No 10 pressured the department to approve Mandelson despite security warnings, intensifying calls for a no‑confidence vote
June 30 dips to 40%3%
Former Foreign Office chief Olly Robbins testifies that No 10 pressured the department to approve Mandelson despite security warnings, intensifying calls for a no‑confidence vote
Starmer condemns violent “Unite the Kingdom” rally and pledges to protect police after far‑right protest turns chaotic
June 30 plunges to 35%16%
Starmer condemns violent “Unite the Kingdom” rally and pledges to protect police after far‑right protest turns chaotic
Labour MP Clive Lewis publicly calls for Starmer’s resignation over the Mandelson scandal, marking the first MP‑level demand
June 30 drops to 35%10%
Labour MP Clive Lewis publicly calls for Starmer’s resignation over the Mandelson scandal, marking the first MP‑level demand
Prime Minister’s “unprecedented” resignation calls intensify after new evidence of Mandelson‑Epstein emails released
June 30 surges to 73%33%
The explosive email leak dramatically increased the perceived risk of Starmer being ousted, driving the
BBC reports that the opposition leader Kemi Badenoch declares Starmer’s position “untenable” and urges his resignation, driving the
June 30 plunges to 34%39%
BBC reports that the opposition leader Kemi Badenoch declares Starmer’s position “untenable” and urges his resignation, driving the
Conservative leader Kemi Badenoch tables a parliamentary debate calling Starmer’s position “untenable” after the Mandelson vetting revelations, intensifying calls for a
June 30 jumps to 43%8%
Conservative leader Kemi Badenoch tables a parliamentary debate calling Starmer’s position “untenable” after the Mandelson vetting revelations, intensifying calls for a no‑confidence vote
Kemi Badenoch tables a parliamentary debate calling Starmer’s position “untenable” after the Mandelson vetting story breaks, sparking a wave of resignations in No 10
June 30 jumps to 43%8%
Kemi Badenoch tables a parliamentary debate calling Starmer’s position “untenable” after the Mandelson vetting story breaks, sparking a wave of resignations in No 10
| Labour MP Jonathan Brash publicly calls for Starmer’s resignation, calling the government a “psychodrama” |
June 30 dips to 40%3%
| Labour MP Jonathan Brash publicly calls for Starmer’s resignation, calling the government a “psychodrama” |
Angela Rayner resigns as Deputy Prime Minister after an independent tax‑affairs investigation, triggering a major cabinet reshuffle and sparking calls for Starmer’s ouster
June 30 plunges to 35%16%
Angela Rayner resigns as Deputy Prime Minister after an independent tax‑affairs investigation, triggering a major cabinet reshuffle and sparking calls for Starmer’s ouster
Starmer repeats “full due process” was followed during PMQs, while opposition MPs (SNP, Conservatives) demand his immediate resignation
June 30 drops to 35%10%
Repeated defence amid fresh opposition pressure pushed the probability down sharply.
Starmer claims “full due process” for Peter Mandelson’s US ambassadorship during PMQs, prompting opposition MPs to demand his resignation
June 30 plunges to 35%16%
Starmer claims “full due process” for Peter Mandelson’s US ambassadorship during PMQs, prompting opposition MPs to demand his resignation
Starmer asserts “full due process” during PMQs while opposition MPs demand his resignation over Mandelson scandal
June 30 dips to 40%3%
Starmer’s defence failed to quell criticism; the parliamentary showdown nudged the
Deputy Prime Minister Angela Rayner resigns amid growing “civil war” in Labour, triggering a reshuffle and fresh speculation on Starmer’s stability
June 30 surges to 45%22%
Deputy Prime Minister Angela Rayner resigns amid growing “civil war” in Labour, triggering a reshuffle and fresh speculation on Starmer’s stability
Starmer tells MPs at PMQs that “full due process” was followed for Mandelson’s appointment, a claim later contradicted by leaked documents, sparking a surge in “Yes” odds
June 30 surges to 73%40%
Starmer tells MPs at PMQs that “full due process” was followed for Mandelson’s appointment, a claim later contradicted by leaked documents, sparking a surge in “Yes” odds
Starmer tells MPs “full due process” was followed for Mandelson’s appointment, later contradicted by evidence
June 30 plunges to 33%15%
Starmer tells MPs “full due process” was followed for Mandelson’s appointment, later contradicted by evidence
Starmer tells Parliament he gave “full due process” for Mandelson’s appointment;
December 31 drops to 55%5%
opposition cites the claim as “blatant lying” and renews resignation demands
Starmer claims “full due process” was followed for Peter Mandelson’s US‑ambassador appointment during Prime Minister’s Questions, prompting opposition MPs to demand his resignation
June 30 plunges to 35%16%
Starmer claims “full due process” was followed for Peter Mandelson’s US‑ambassador appointment during Prime Minister’s Questions, prompting opposition MPs to demand his resignation
| Olly Robbins, top Foreign Office official, resigns amid Mandelson vetting row |
June 30 jumps to 43%8%
| Olly Robbins, top Foreign Office official, resigns amid Mandelson vetting row |
| Starmer sacks Ambassador‑designate Peter Mandelson after emails reveal a close relationship with Jeffrey Epstein |
June 30 plunges to 35%16%
| Starmer sacks Ambassador‑designate Peter Mandelson after emails reveal a close relationship with Jeffrey Epstein |
Conservative leader Kemi Badenoch tables a parliamentary debate demanding a no‑confidence vote on Starmer, citing the Mandelson scandal
June 30 plunges to 39%28%
Conservative leader Kemi Badenoch tables a parliamentary debate demanding a no‑confidence vote on Starmer, citing the Mandelson scandal
Institute for Government records Anneliese Dodds resigns as development minister in protest over Starmer’s aid cuts, adding to cabinet instability
December 31 jumps to 68%5%
Institute for Government records Anneliese Dodds resigns as development minister in protest over Starmer’s aid cuts, adding to cabinet instability
| Opposition leader Kemi Badenoch declares Starmer’s position “untenable” after new evidence on Mandelson’s vetting is released |
| Opposition leader Kemi Badenoch declares Starmer’s position “untenable” after new evidence on Mandelson’s vetting is released |
BBC notes Anas Sarwar’s dramatic press conference demanding Starmer quit, prompting a sharp market rally
December 31 jumps to 63%6%
BBC notes Anas Sarwar’s dramatic press conference demanding Starmer quit, prompting a sharp market rally
Peter Mandelson is dismissed as ambassador after emails linking him to Jeffrey Epstein are published, reigniting scandal‑driven instability
June 30 surges to 67%25%
Peter Mandelson is dismissed as ambassador after emails linking him to Jeffrey Epstein are published, reigniting scandal‑driven instability
The National publishes “Starmer urged to quit ‘by end of day’” after new evidence on the Mandelson‑Epstein link, prompting a sharp
December 31 dips to 69%3%
The National publishes “Starmer urged to quit ‘by end of day’” after new evidence on the Mandelson‑Epstein link, prompting a sharp
Starmer survives another round of criticism, keeping “Yes” probability steady
December 31 drops to 66%5%
Starmer survives another round of criticism, keeping “Yes” probability steady
BBC reports that senior minister Anneliese Dodds resigns in protest over aid‑budget cuts, adding to the cumulative resignation tally
BBC reports that senior minister Anneliese Dodds resigns in protest over aid‑budget cuts, adding to the cumulative resignation tally
Starmer defies resignation calls, insisting he will not step down despite mounting pressure
December 31 rises to 71%3%
Starmer defies resignation calls, insisting he will not step down despite mounting pressure
Guardian live‑blog notes that Labour MP Jonathan Brash calls for Starmer’s resignation, and several ministers publicly distance themselves, sending the
December 31 jumps to 72%6%
Guardian live‑blog notes that Labour MP Jonathan Brash calls for Starmer’s resignation, and several ministers publicly distance themselves, sending the
BBC reports that senior Labour figures (e.g., Ed Miliband) distance themselves from the Mandelson appointment, reigniting speculation of a leadership challenge
December 31 surges to 72%23%
BBC reports that senior Labour figures (e.g., Ed Miliband) distance themselves from the Mandelson appointment, reigniting speculation of a leadership challenge
BBC reports senior civil servant Sir Chris Wormald likely to quit after McSweeney’s resignation, adding to leadership turmoil
December 31 dips to 68%3%
BBC reports senior civil servant Sir Chris Wormald likely to quit after McSweeney’s resignation, adding to leadership turmoil
Time article outlines growing pressure on Starmer after the Mandelson‑Epstein revelations, noting multiple ministerial resignations and a dip in approval ratings
June 30 jumps to 42%5%
Time article outlines growing pressure on Starmer after the Mandelson‑Epstein revelations, noting multiple ministerial resignations and a dip in approval ratings
Prime Minister Starmer declares he was “staggering” not to have been told about Mandelson’s vetting failure and vows an investigation, briefly restoring confidence
June 30 surges to 41%25%
Prime Minister Starmer declares he was “staggering” not to have been told about Mandelson’s vetting failure and vows an investigation, briefly restoring confidence
Labour’s internal poll shows 51 % of members now favour a leadership contest, reviving resignation speculation
December 31 jumps to 67%14%
Labour’s internal poll shows 51 % of members now favour a leadership contest, reviving resignation speculation
Time article details growing calls for Starmer to resign after Mandelson’s scandal resurfaces, noting “mounting calls” and “rising pressure”
December 31 jumps to 57%7%
Time article details growing calls for Starmer to resign after Mandelson’s scandal resurfaces, noting “mounting calls” and “rising pressure”
Starmer declares he will not “walk away” and survives a cabinet reshuffle after the resignation of adviser Morgan McSweeney, pushing the market back up
December 31 jumps to 66%12%
Starmer declares he will not “walk away” and survives a cabinet reshuffle after the resignation of adviser Morgan McSweeney, pushing the market back up
Starmer survives a confidence‑vote after cabinet ministers rally behind him;
December 31 drops to 49%13%
the brief show of unity pulls the market down
Tory leader Kemi Badenoch declares Starmer’s position “untenable” after the Mandelson vetting revelations;
December 31 jumps to 60%7%
SNP leader Stephen Flynn urges immediate resignation
Prime Minister’s Questions: Starmer refuses to “walk away,” but admits “political turmoil,” temporarily stabilising the market
December 31 drops to 53%14%
Prime Minister’s Questions: Starmer refuses to “walk away,” but admits “political turmoil,” temporarily stabilising the market
Anas Sarwar reiterates his resignation demand at a press conference, pushing the
December 31 surges to 67%15%
Anas Sarwar reiterates his resignation demand at a press conference, pushing the
Scottish Labour leader Anas Sarwar holds a press conference demanding Starmer quit, reigniting leadership doubts and sending the
June 30 plunges to 16%34%
Scottish Labour leader Anas Sarwar holds a press conference demanding Starmer quit, reigniting leadership doubts and sending the
| Labour MP Anas Sarwar announces a dramatic press‑conference call for Starmer’s resignation |
| Labour MP Anas Sarwar announces a dramatic press‑conference call for Starmer’s resignation |
Starmer reveals for the first time (via GB News) the exact date (Jan 29 2025) the security vetting was denied and that he only learned of it on April 14 2025
June 30 drops to 45%6%
The delayed disclosure calmed the market slightly as the Prime Minister appeared transparent, causing a modest dip.
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, reviving speculation
December 31 surges to 71%22%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, reviving speculation
Starmer announces a cabinet reshuffle and retains backing from senior Labour figures, lifting the
December 31 jumps to 52%6%
Starmer announces a cabinet reshuffle and retains backing from senior Labour figures, lifting the
Former chief of staff Morgan McSweeney resigns over the Mandelson row, prompting a sharp drop
December 31 plunges to 46%19%
Former chief of staff Morgan McSweeney resigns over the Mandelson row, prompting a sharp drop
Scottish Labour leader Anas Sarwar makes a surprise press‑conference demanding Starmer quit, prompting a flurry of media coverage
December 31 drops to 62%12%
Scottish Labour leader Anas Sarwar makes a surprise press‑conference demanding Starmer quit, prompting a flurry of media coverage
Kemi Badenoch (UK opposition leader) declares Starmer’s position “untenable” after the Mandelson fallout, pushing the
December 31 jumps to 67%14%
Kemi Badenoch (UK opposition leader) declares Starmer’s position “untenable” after the Mandelson fallout, pushing the
Scottish Labour leader Anas Sarwar announces a last‑minute press conference demanding Starmer quit, causing a sharp market dip
December 31 drops to 54%10%
Scottish Labour leader Anas Sarwar announces a last‑minute press conference demanding Starmer quit, causing a sharp market dip
| Angela Rayner (Deputy Prime Minister) announces she will not stand for re‑election as deputy after a tax‑scandal inquiry, prompting a major cabinet reshuffle | Loss of the
December 31 rises to 73%4%
| Angela Rayner (Deputy Prime Minister) announces she will not stand for re‑election as deputy after a tax‑scandal inquiry, prompting a major cabinet reshuffle | Loss of the deputy heightened perception of a collapsing government, pushing the
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, citing “psychodrama” in Westminster
December 31 jumps to 74%6%
Labour MP Jonathan Brash publicly calls for Starmer’s resignation, citing “psychodrama” in Westminster
BBC reports that senior Labour MPs (including Clive Lewis) publicly urge Starmer to step down, widening the leadership challenge narrative
December 31 jumps to 70%5%
BBC reports that senior Labour MPs (including Clive Lewis) publicly urge Starmer to step down, widening the leadership challenge narrative
Labour MP Clive Lewis publicly calls for Starmer’s resignation, marking the first parliamentary demand since the scandal broke
June 30 drops to 31%8%
Labour MP Clive Lewis publicly calls for Starmer’s resignation, marking the first parliamentary demand since the scandal broke
Starmer survives a no‑confidence challenge;
December 31 jumps to 71%7%
cabinet publicly backs him, causing a short dip
BBC reports that former communications chief Matthew Doyle pushed for a secret diplomatic appointment, adding to accusations that Starmer misled Parliament
December 31 drops to 64%7%
BBC reports that former communications chief Matthew Doyle pushed for a secret diplomatic appointment, adding to accusations that Starmer misled Parliament
Conservative leader Kemi Badenoch tables a parliamentary debate calling Starmer’s position “untenable” over the Mandelson scandal
June 30 jumps to 51%8%
Badenoch’s formal challenge signalled a possible no‑confidence vote, driving the
Scottish Labour leader Anas Sarwar publicly calls for Starmer’s resignation, prompting a brief market dip
December 31 drops to 65%6%
Scottish Labour leader Anas Sarwar publicly calls for Starmer’s resignation, prompting a brief market dip
Junior minister Josh Simons resigns despite being cleared, adding to the perception of a collapsing government
December 31 drops to 65%6%
Junior minister Josh Simons resigns despite being cleared, adding to the perception of a collapsing government
BBC reports senior Labour ministers publicly back Starmer after Sarwar’s surprise resignation‑call the previous week, temporarily calming markets
December 31 drops to 50%5%
BBC reports senior Labour ministers publicly back Starmer after Sarwar’s surprise resignation‑call the previous week, temporarily calming markets
Sacked Foreign Office chief Olly Robbins testifies that No 10 pressured officials to approve Mandelson, intensifying calls for a no‑confidence vote
December 31 jumps to 53%5%
Sacked Foreign Office chief Olly Robbins testifies that No 10 pressured officials to approve Mandelson, intensifying calls for a no‑confidence vote
Scottish Labour leader Anas Sarwar calls for Starmer to quit, sending the
December 31 jumps to 71%6%
Scottish Labour leader Anas Sarwar calls for Starmer to quit, sending the
| Labour MP Clive Lewis becomes the first MP to publicly call for Starmer’s resignation over the Mandelson affair | First MP‑level resignation call added credibility to the
December 31 dips to 69%2%
| Labour MP Clive Lewis becomes the first MP to publicly call for Starmer’s resignation over the Mandelson affair | First MP‑level resignation call added credibility to the crisis, sustaining high odds. |
| Deputy Prime Minister Angela Rayner resigns amid the Mandelson scandal, prompting a major cabinet reshuffle |
| Deputy Prime Minister Angela Rayner resigns amid the Mandelson scandal, prompting a major cabinet reshuffle |
Former senior civil servant Olly Robbins testifies that No 10 pressured the Foreign Office to approve Mandelson, intensifying calls for a no‑confidence vote
June 30 rises to 48%3%
Former senior civil servant Olly Robbins testifies that No 10 pressured the Foreign Office to approve Mandelson, intensifying calls for a no‑confidence vote
Starmer announces a cabinet reshuffle, removing the deputy prime minister and several ministers linked to the scandal, which temporarily eases concerns
June 30 dips to 50%1%
Starmer announces a cabinet reshuffle, removing the deputy prime minister and several ministers linked to the scandal, which temporarily eases concerns
Former Foreign Office chief Olly Robbins alleges “constant pressure” from No 10 to approve Mandelson’s appointment
June 30 jumps to 43%8%
Robbins’ testimony suggested the Prime Minister’s office had overridden security advice, reviving doubts about Starmer’s judgment and pushing the market back up.
Labour MP Clive Lewis publicly calls for Starmer’s resignation over alleged misleading of Parliament on the Mandelson case
June 30 drops to 37%7%
Labour MP Clive Lewis publicly calls for Starmer’s resignation over alleged misleading of Parliament on the Mandelson case
Labour MP Clive Lewis publicly calls for Starmer’s resignation, reigniting media scrutiny of the Mandelson affair
December 31 jumps to 71%7%
Labour MP Clive Lewis publicly calls for Starmer’s resignation, reigniting media scrutiny of the Mandelson affair
Conservative leader Kemi Badenoch declares Starmer’s position “untenable” over the Mandelson vetting row, intensifying opposition calls for resignation
December 31 drops to 68%5%
Conservative leader Kemi Badenoch declares Starmer’s position “untenable” over the Mandelson vetting row, intensifying opposition calls for resignation
Foreign Office civil servant Sir Olly Robbins sacked over the Mandelson vetting scandal, intensifying pressure on Starmer
December 31 drops to 61%7%
Foreign Office civil servant Sir Olly Robbins sacked over the Mandelson vetting scandal, intensifying pressure on Starmer
Starmer’s undisclosed visit to Palantir’s Washington office later reported, raising fresh ministerial‑code breach accusations
December 31 jumps to 68%12%
Starmer’s undisclosed visit to Palantir’s Washington office later reported, raising fresh ministerial‑code breach accusations
Peter Mandelson officially begins as UK ambassador to the United States;
December 31 rises to 73%2%
media note the controversy surrounding his security clearance
Starmer “absolutely furious” after learning Peter Mandelson failed security vetting before his U.S. ambassadorship appointment
December 31 jumps to 56%5%
Starmer “absolutely furious” after learning Peter Mandelson failed security vetting before his U.S. ambassadorship appointment
Mandelson is formally appointed U.S.
June 30 jumps to 45%10%
ambassador despite the earlier vetting denial, prompting immediate calls from opposition MPs for Starmer’s resignation
Peter Mandelson formally assumes U.S.
December 31 rises to 48%4%
ambassadorship; opposition MPs launch immediate calls for Starmer’s resignation over the appointment
Starmer publicly declares he was “absolutely furious” to learn Mandelson had failed security vetting before his appointment
June 30 jumps to 43%9%
Starmer’s admission of being misled intensified media scrutiny and opposition demands, lifting the “out‑by‑June 30” odds.
Starmer appoints Peter Mandelson as U.S.
June 30 surges to 48%25%
ambassador despite pending security vetting
Starmer “furious” after learning Lord Peter Mandelson failed security vetting; Kemi Badenoch says his position “untenable”
June 30 plunges to 35%16%
The revelation that Mandelson’s appointment had been made despite a failed vetting check sparked immediate calls from the Conservative leader Kemi Badenoch for Starmer to resign, sending the “Yes” probability sharply lower.
Mandelson formally assumes Washington post despite earlier vetting concerns, sparking fresh criticism of Starmer’s judgment
December 31 jumps to 55%6%
Mandelson formally assumes Washington post despite earlier vetting concerns, sparking fresh criticism of Starmer’s judgment
| Morgan McSweeney (Starmer’s chief of staff) resigns, citing responsibility for the Mandelson appointment | The departure of a senior adviser signalled internal turmoil, nudging
December 31 rises to 71%3%
| Morgan McSweeney (Starmer’s chief of staff) resigns, citing responsibility for the Mandelson appointment | The departure of a senior adviser signalled internal turmoil, nudging the
Labour MP Clive Lewis publicly calls for Starmer’s resignation, marking the first open MP demand and lifting “out‑by‑June 30” probabilities
June 30 dips to 51%3%
Labour MP Clive Lewis publicly calls for Starmer’s resignation, marking the first open MP demand and lifting “out‑by‑June 30” probabilities
Starmer survives a confidence vote in Parliament, temporarily stabilising the
December 31 jumps to 67%6%
Starmer survives a confidence vote in Parliament, temporarily stabilising the
Reform UK’s Nigel Farage demands Starmer resign after evidence he misled Parliament on Mandelson’s clearance
December 31 drops to 64%7%
Reform UK’s Nigel Farage demands Starmer resign after evidence he misled Parliament on Mandelson’s clearance
Opposition leader Kemi Badenoch publicly demands Starmer’s resignation, pushing the market lower
December 31 drops to 61%7%
Opposition leader Kemi Badenoch publicly demands Starmer’s resignation, pushing the market lower
Opposition MPs (SNP, Lib Dem, Reform UK) demand Starmer’s resignation after evidence that he misled Parliament on Mandelson’s appointment
June 30 plunges to 23%28%
Opposition MPs (SNP, Lib Dem, Reform UK) demand Starmer’s resignation after evidence that he misled Parliament on Mandelson’s appointment
| Kemi Badenoch (Conservative leader) labels Starmer’s position “untenable” after the Mandelson scandal, calling for his immediate resignation | Opposition pressure reinforced
December 31 dips to 68%2%
| Kemi Badenoch (Conservative leader) labels Starmer’s position “untenable” after the Mandelson scandal, calling for his immediate resignation | Opposition pressure reinforced market expectations of a possible ouster, keeping the
Morgan McSweeney, Starmer’s chief of staff, resigns, taking responsibility for advising the Mandelson appointment
June 30 plunges to 39%28%
Morgan McSweeney, Starmer’s chief of staff, resigns, taking responsibility for advising the Mandelson appointment
BBC reports that senior civil servant Sir Olly Robbins was sacked for defending the Mandelson vetting, intensifying calls for a no‑confidence vote
June 30 drops to 44%5%
BBC reports that senior civil servant Sir Olly Robbins was sacked for defending the Mandelson vetting, intensifying calls for a no‑confidence vote
Prime Minister’s furious response at a France summit, calling his own position “untenable” after the Mandelson revelations
December 31 drops to 68%9%
Prime Minister’s furious response at a France summit, calling his own position “untenable” after the Mandelson revelations
BBC reports that Sir Olly Robbins was sacked after exposing No 10 pressure to approve Mandelson
December 31 jumps to 71%9%
BBC reports that Sir Olly Robbins was sacked after exposing No 10 pressure to approve Mandelson
Prime Minister Starmer faces a no‑confidence motion after the Mandelson row;
June 30 jumps to 62%5%
opposition parties and SNP leader Stephen Flynn demand his resignation, pushing “Yes” to a market high
Starmer survives a no‑confidence motion after his cabinet rallies behind him, temporarily halting the resignation surge
December 31 drops to 64%7%
Starmer survives a no‑confidence motion after his cabinet rallies behind him, temporarily halting the resignation surge
Starmer publicly denies knowledge of Mandelson’s vetting failure, prompting opposition calls for a no‑confidence vote
June 30 plunges to 51%28%
Starmer publicly denies knowledge of Mandelson’s vetting failure, prompting opposition calls for a no‑confidence vote
| Starmer publicly denies having misled Parliament about Mandelson’s clearance, sparking heated Commons debate |
| Starmer publicly denies having misled Parliament about Mandelson’s clearance, sparking heated Commons debate |
Senior civil servant Sir Olly Robbins testifies that No 10 pressured the Foreign Office to approve Mandelson, prompting opposition leader Kemi Badenoch to label Starmer’s position
December 31 jumps to 71%14%
Senior civil servant Sir Olly Robbins testifies that No 10 pressured the Foreign Office to approve Mandelson, prompting opposition leader Kemi Badenoch to label Starmer’s position “untenable”
Morgan McSweeney (Starmer’s chief of staff) resigns, taking responsibility for the Mandelson appointment, sparking leadership‑challenge rumours
June 30 dips to 49%4%
Morgan McSweeney (Starmer’s chief of staff) resigns, taking responsibility for the Mandelson appointment, sparking leadership‑challenge rumours
| Prime Minister Keir Starmer publicly declares he was “staggered” to learn Mandelson failed vetting and vows to “walk away” from power if forced to resign | Starmer’s admission
December 31 jumps to 70%8%
| Prime Minister Keir Starmer publicly declares he was “staggered” to learn Mandelson failed vetting and vows to “walk away” from power if forced to resign | Starmer’s admission of being blindsided amplified speculation of a leadership crisis, driving the
BBC reports Mandelson was appointed despite a “clearance denied” vetting recommendation, intensifying pressure on Starmer
December 31 surges to 77%15%
BBC reports Mandelson was appointed despite a “clearance denied” vetting recommendation, intensifying pressure on Starmer
Scottish Labour leader Anas Sarwar calls for Starmer’s resignation, intensifying pressure
December 31 drops to 62%9%
Scottish Labour leader Anas Sarwar calls for Starmer’s resignation, intensifying pressure
Starmer publicly refuses to “walk away” after senior adviser Morgan McSweeney resigns amid Mandelson‑vetting row
December 31 jumps to 71%11%
Starmer publicly refuses to “walk away” after senior adviser Morgan McSweeney resigns amid Mandelson‑vetting row
Starmer tells MPs he was “not prepared to walk away” after the resignation of chief adviser Morgan McSweeney amid the Mandelson scandal
December 31 jumps to 71%9%
Starmer tells MPs he was “not prepared to walk away” after the resignation of chief adviser Morgan McSweeney amid the Mandelson scandal
Starmer survives a confidence‑vote in the Commons despite opposition calls for his resignation over the Mandelson scandal
June 30 surges to 67%45%
Starmer survives a confidence‑vote in the Commons despite opposition calls for his resignation over the Mandelson scandal
Parliamentary committee summons former chief of staff Olly Robbins to testify on the Mandelson appointment, reviving pressure on Starmer and pushing odds higher
June 30 jumps to 54%12%
Parliamentary committee summons former chief of staff Olly Robbins to testify on the Mandelson appointment, reviving pressure on Starmer and pushing odds higher
Prime Minister Keir Starmer publicly admits he was “staggered” to learn Mandelson’s vetting failure and says he was not told, sparking fresh calls for his resignation
December 31 jumps to 57%7%
Prime Minister Keir Starmer publicly admits he was “staggered” to learn Mandelson’s vetting failure and says he was not told, sparking fresh calls for his resignation
Starmer fires senior adviser Morgan McSweeney after the Mandelson vetting row, signalling a firm response and briefly calming markets
June 30 jumps to 42%14%
Starmer fires senior adviser Morgan McSweeney after the Mandelson vetting row, signalling a firm response and briefly calming markets
Starmer sacks Foreign Office permanent secretary Olly Robbins after Robbins reveals pressure to approve Mandelson despite failed vetting
June 30 surges to 79%24%
Starmer sacks Foreign Office permanent secretary Olly Robbins after Robbins reveals pressure to approve Mandelson despite failed vetting
Starmer sacks Foreign Office Permanent Secretary Olly Robbins after Robbins reveals pressure to approve Mandelson’s appointment
June 30 surges to 43%21%
Starmer sacks Foreign Office Permanent Secretary Olly Robbins after Robbins reveals pressure to approve Mandelson’s appointment
Starmer says he was “staggered” to learn Lord Peter Mandelson failed security vetting, sparking fresh calls for his resignation
December 31 jumps to 62%11%
Starmer says he was “staggered” to learn Lord Peter Mandelson failed security vetting, sparking fresh calls for his resignation
Starmer’s government survives a “crunch vote” on the Northern Ireland veterans bill after whipping MPs, easing resignation fears
June 30 surges to 53%31%
Starmer’s government survives a “crunch vote” on the Northern Ireland veterans bill after whipping MPs, easing resignation fears
Foreign Office admits it overrode security advice and appointed Mandelson as US ambassador despite clearance denial, prompting Tory leader Kemi Badenoch to call Starmer’s position
June 30 surges to 57%22%
Foreign Office admits it overrode security advice and appointed Mandelson as US ambassador despite clearance denial, prompting Tory leader Kemi Badenoch to call Starmer’s position “untenable”
UK Security Vetting rejects Peter Mandelson’s clearance for the U.S.
June 30 jumps to 35%5%
ambassadorship, but the Foreign Office later over‑rules the decision
UK security vetting rejects Peter Mandelson for U.S.
December 31 surges to 60%16%
ambassadorship, but Starmer proceeds with appointment
UK Foreign Office admits it over‑ruled security vetting and approved Peter Mandelson as U.S.
December 31 drops to 44%6%
ambassador despite a “failed” clearance
Starmer “staggering” that he was not told Lord Peter Mandelson failed security vetting, sparking the first major parliamentary questioning of his judgment
June 30 plunges to 35%16%
Starmer “staggering” that he was not told Lord Peter Mandelson failed security vetting, sparking the first major parliamentary questioning of his judgment
UK Security Services reveal Peter Mandelson failed the January 2025 security vetting, but the Foreign Office over‑ruled the decision and proceeded with his US ambassadorship
December 31 jumps to 50%6%
UK Security Services reveal Peter Mandelson failed the January 2025 security vetting, but the Foreign Office over‑ruled the decision and proceeded with his US ambassadorship
Olly Robbins tells MPs No 10 put “constant pressure” on the Foreign Office to approve Peter Mandelson’s ambassadorship despite security‑vetting concerns
June 30 jumps to 34%8%
The revelation that senior civil servants were pressured to ignore vetting warnings sparked a fresh call for Starmer’s resignation, pushing the market up.
Peter Mandelson fails UK security vetting for US ambassadorship, but appointment proceeds after Foreign Office overruling
June 30 plunges to 35%16%
Peter Mandelson fails UK security vetting for US ambassadorship, but appointment proceeds after Foreign Office overruling
Peter Mandelson’s security‑vetting failure revealed, prompting criticism of Starmer’s appointment of him as U.S. ambassador
June 30 plunges to 35%16%
Peter Mandelson’s security‑vetting failure revealed, prompting criticism of Starmer’s appointment of him as U.S. ambassador
UK Foreign Office reveals Peter Mandelson failed security vetting for the U.S.
June 30 plunges to 35%16%
ambassadorship, sparking immediate calls for Starmer’s resignation
| UK Foreign Office admits Peter Mandelson failed security vetting in January 2025, but appointment proceeded |
| UK Foreign Office admits Peter Mandelson failed security vetting in January 2025, but appointment proceeded |
Security‑vetting failure for Peter Mandelson revealed, showing he had been rejected in January 2025 but later appointed as U.K. ambassador to Washington
December 31 jumps to 49%7%
Security‑vetting failure for Peter Mandelson revealed, showing he had been rejected in January 2025 but later appointed as U.K. ambassador to Washington
| Olly Robbins (top Foreign Office civil servant) testifies that No 10 pressured the department to approve Peter Mandelson’s US‑ambassador appointment despite failed security
December 31 jumps to 55%7%
| Olly Robbins (top Foreign Office civil servant) testifies that No 10 pressured the department to approve Peter Mandelson’s US‑ambassador appointment despite failed security vetting | Revelation of direct No 10 interference raised doubts about Starmer’s control, lifting “Yes” odds. |
UK security vetting finds Peter Mandelson failed clearance for US ambassadorship
June 30 surges to 55%24%
UK security vetting finds Peter Mandelson failed clearance for US ambassadorship
Olly Robbins, senior Foreign Office official, publicly alleges “constant pressure” from No 10 to approve Peter Mandelson’s US‑ambassador appointment despite failed security vetting
December 31 jumps to 50%6%
Olly Robbins, senior Foreign Office official, publicly alleges “constant pressure” from No 10 to approve Peter Mandelson’s US‑ambassador appointment despite failed security vetting
Starmer’s Downing Street refurbishment bill of £30,000 sparks public outrage and calls for his resignation, pushing the market down to 35% Yes
June 30 plunges to 35%16%
Starmer’s Downing Street refurbishment bill of £30,000 sparks public outrage and calls for his resignation, pushing the market down to 35% Yes
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