Name: Which party wins the most seats after UK Election?
Start: 2024-04-30T16:55:17.819667Z
End: 2025-01-28T12:00:00Z

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This market will resolve to "Yes" if the Labour Party gains more seats than any other party in the House of Commons as a result of the next UK General Election. Otherwise, this market will resolve to "No".

If voting in the next UK General Election does not occur by January 31, 2025, this market will resolve to "No".

In the case of a tie between this party and any other for the most seats gained, this market will resolve in favor of the party which comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the Labour Party, not any coalition of which it may be a part.

The primary resolution source for this market will be official information from the UK Government, however, a consensus of credible reporting may also be used.  

Labour

This market will resolve to "Yes" if the Conservative Party gains more seats than any other party in the House of Commons as a result of the next UK General Election. Otherwise, this market will resolve to "No".

If voting in the next UK General Election does not occur by January 31, 2025, this market will resolve to "No".

In the case of a tie between this party and any other for the most seats gained, this market will resolve in favor of the party which comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the Conservative Party, not any coalition of which it may be a part.

The primary resolution source for this market will be official information from the UK Government, however, a consensus of credible reporting may also be used.  

Conservative

This market will resolve to "Yes" if the Liberal Democrats gain more seats than any other party in the House of Commons as a result of the next UK General Election. Otherwise, this market will resolve to "No".

If voting in the next UK General Election does not occur by January 31, 2025, this market will resolve to "No".

In the case of a tie between this party and any other for the most seats gained, this market will resolve in favor of the party which comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the Liberal Democrats, not any coalition of which they may be a part.

The primary resolution source for this market will be official information from the UK Government, however, a consensus of credible reporting may also be used.  

Lib Dems

This market will resolve to "Yes" if Reform UK gains more seats than any other party in the House of Commons as a result of the next UK General Election. Otherwise, this market will resolve to "No".

If voting in the next UK General Election does not occur by January 31, 2025, this market will resolve to "No".

In the case of a tie between this party and any other for the most seats gained, this market will resolve in favor of the party which comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by Reform UK, not any coalition of which it may be a part.

The primary resolution source for this market will be official information from the UK Government, however, a consensus of credible reporting may also be used.  

Reform

This market will resolve to "Yes" if any party apart from the Labour Party, the Conservative Party, the Liberal Democrats, and/or Reform UK gains more seats than any other party in the House of Commons as a result of the next UK General Election. Otherwise, this market will resolve to "No".

If voting in the next UK General Election does not occur by January 31, 2025, this market will resolve to "Yes".

In the case of a tie between a party and any other for the most seats gained, this market will resolve in favor of the party which comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by any singular party apart from those above listed which wins the most seats, not any coalition of which that party may be a part.

The primary resolution source for this market will be official information from the UK Government, however, a consensus of credible reporting may also be used.  

Other

Which party wins the most seats after UK Election?

Parliamentary elections to elect all 125 seats of the National Assembly of Quebec are scheduled to take place in Quebec on October 5, 2026.

This market will resolve to the political party that wins the greatest number of seats in the National Assembly of Quebec as a result of this election.

If voting in the 2026 Quebec general election does not occur by January 31, 2027, this market will resolve to "Other".

In the event of a tie for the most seats won between this party and any other, this market will resolve in favor of the party that won the most valid votes in the respective election. If this also results in a tie, this market will resolve in favor of the party or coalition whose listed abbreviation comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by Élections Québec (https://www.electionsquebec.qc.ca).

Will Parti Québécois win the most seats in the 2026 Quebec general election?

This market will resolve according to the party that controls the House of Representatives following the 2026 U.S. House elections scheduled for November 3, 2026.

House control is defined as having more than half of the voting members of the U.S. House of Representatives.

If the outcome of this election is ambiguous given the above rules, this market will remain open until the Speaker of the House is selected following the 2026 U.S. general election, at which point it will resolve to the party the Speaker is affiliated with at the time of their election to that position. If the elected Speaker does not caucus with any listed party this market will resolve “Other”.

Determination of which party controls the House after the 2026 U.S. House elections will be based on a consensus of credible reporting, or if there is ambiguity, final federal and/or state election authority certification or other final official determination of the 2026 election results.

Will the Democratic Party control the House after the 2026 Midterm elections?

Parliamentary elections to elect the Abgeordnetehaus of Berlin are scheduled to take place in Berlin on September 20, 2026.

This market will resolve to the political party that wins the greatest number of seats in the formal deliberative assembly of Berlin (Abgeordnetenhaus) as a result of this election.

If voting in the Berlin election for the Abgeordnetenhaus does not occur by December 31, 2026, this market will resolve to "Other".

In the case of a tie between this party or coalition and any other for the most seats won, this market will resolve in favor of the party or coalition whose listed abbreviation comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition.

This market will resolve based on the election results, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Election Office of Berlin (Landeswahlleiter Berlin https://www.berlin.de/wahlen/)


Will CDU win the most seats in the 2026 Berlin state elections?

Parliamentary elections to elect the Landtag of Baden-Württemberg are scheduled to take place in Baden-Württemberg on March 8, 2026.

This market will resolve to the political party that wins the greatest number of seats in the formal deliberative assembly of Baden-Württemberg (Landtag) as a result of this election.

If voting in the Baden-Württemberg election for the Landtag does not occur by July 31, 2026, this market will resolve to "Other".

In the case of a tie between this party or coalition and any other for the most seats won, this market will resolve in favor of the party or coalition whose listed abbreviation comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Baden-Württemberg Statistischen Landesamt  (https://www.statistik-bw.de/staat-und-gesellschaft/wahlen/landtagswahl).

Will CDU win the most seats in the 2026 Baden-Württemberg parliamentary elections?

This market will resolve according to the party of the candidate who wins the CA-22 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026.

If no winner is announced by November 4, 2026, 11:59PM ET, this market will resolve to "Other".

​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Will the Republican Party win the CA-22 House seat?

This market will resolve according to the party of the candidate who wins the CA-27 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026.

If no winner is announced by November 4, 2026, 11:59PM ET, this market will resolve to "Other".

​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Will the Democratic Party win the CA-27 House seat?

This market will resolve according to the result of the 2026 United States midterm elections.

A party will be considered to have 'control' of the House of Representatives, if they win a majority of voting seats.

A party will be considered to have 'control' of the Senate if they have more than half of the voting Senate members, or half of the voting Senate members and the Vice President.

A candidate's party is determined by their ballot-listed or otherwise identifiable affiliation with that party at the time the 2026 United States midterm elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican Parties will be considered a member of one of these parties based on the party that they most recently expressed their intent to caucus with at the time the 2026 United States midterm elections are conclusively called by this market's resolution sources.

If control of the House is ambiguous given the above rules, this market will resolve according to the party affiliation of the first Speaker of the US House who is selected following the 2026 United States midterm elections. 

If control of the Senate is ambiguous given the above rules, this market will resolve according to the party affiliation of the first Majority Leader of the US Senate who is selected following the 2026 United States midterm elections.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called winners of the House and Senate in the 2026 United States midterm elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.

2026 Balance of Power: R Senate, D House

This market will resolve to “Yes” if, between the Republican Party and the Democratic Party, the Republican Party becomes the favorite in the "Which party will win the House in 2026?" market (https://polymarket.com/event/which-party-will-win-the-house-in-2026?tid=1764045739181) for any four-hour period ending by March 31, 2026, 11:59 PM ET or earlier. Otherwise, this market will resolve to “No”.

The Republican Party will be considered to have become the favorite for any four-hour period if it is ahead of the Democratic Party in more individual minutes than the Democratic Party is ahead of the Republican Party during a qualifying time period.

A tie in the number of minutes will not qualify.

The resolution source will be the underlying minute-level price data for the “Which party will win the House in 2026?” market, which can be viewed using the bar chart on https://derivative.polymarket.com/index/will-the-republicans-flip-the-democrats-for-the-2026-us-house-elections-by or through the “Resolution” tab with the time set to show the four-hour window. Both interfaces display the same underlying data.

Note: This market will resolve according to the price scoring methodology of derivative.polymarket.com.

2026 U.S. House election: Republicans flip the Democrats by March 31?

This market will resolve to "Yes" if the date of the next UK general election is declared by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No".

For this market to resolve to "Yes" it is only necessary that the election date be declared, not that the election actually occur within the market timeframe.

The primary resolution source for this market will be official information from the government of the United Kingdom, however a consensus of credible reporting will also be used.

Will the next UK election be called by June 30, 2026?

Parliamentary elections are scheduled to be held in Sweden on September 13, 2026.

This market will resolve according to the political party that wins the greatest number of seats in the Swedish Parliament (Riksdag) in this election.

If voting in the Swedish parliamentary election does not occur by December 31, 2026, 11:59 PM ET, this market will resolve to "Other".

In the event of a tie between multiple parties for the most seats won, this market will resolve in favor of the party or coalition which received a greater number of valid votes. In the event that results in a tie, this market will resolve in favor of the party or coalition whose listed abbreviation appears first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition in the Swedish Parliament. 

This market will resolve based on the results of this election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Benin government, specifically the constitutional court of Benin (Cour constitutionnelle du Bénin) (https://courconstitutionnelle.bj/en).

Will the Swedish Social Democratic Party (S) win the most seats in the 2026 Swedish parliamentary election?

This market will resolve according to the party that controls the Senate following the 2026 U.S. Senate elections scheduled for November 3, 2026.

Senate control is defined as having more than half of the voting Senate members, or half of the voting Senate members and the Vice Presidency.

If the outcome of this election is ambiguous given the above rules, this market will remain open until the Majority Leader of the US Senate is selected following the 2026 US general election, at which point it will resolve to the party the majority leader is affiliated with at the time of their election to that position. If the elected majority leader does not caucus with any listed party this market will resolve “Other”.

Determination of which party controls the Senate after the 2026 US Senate elections will be based on a consensus of credible reporting, or if there is ambiguity, final federal and/or state election authority certification or other final official determination of the 2026 election results.

Will the Republican Party control the Senate after the 2026 Midterm elections?

This market will resolve to "Yes" if a leadership election for the UK-wide Leader of the Labour Party is scheduled by the specified date, ET. Otherwise, this market will resolve to "No".

This market is about whether a date for any Labour Party leadership election is announced within this market's timeframe. Whether the election is supposed to take place within this market's timeframe or later will have no effect on the resolution to this market.

The resolution source for this market will be official information from the Labour Party, however a consensus of credible reporting may be used.

Labour leadership election scheduled by June 30?

This market will resolve to "Yes" if another Member of Parliament (MP) currently sitting with the Conservative Party of Canada leaves the party or caucus by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No".

Qualifying events include instances where a Conservative MP resigns from or is expelled from the Conservative caucus, joins another party, or publicly declares independence before the market’s end date.

The primary resolution source for this market will be official information from the Conservative Party of Canada or the House of Commons of Canada; however, a consensus of credible reporting will also be used.

Another MP leaves Conservative Party of Canada by December 31?

Taiwanese local elections are scheduled to be held on November 28, 2026. 

This market will resolve according to the party whose official candidates win the most head of local government (mayor or magistrate) elections for Taiwan’s major special municipalities, counties, and cities during these elections.

A candidate will be considered an official candidate of a party if they are officially nominated by that party and are registered for the relevant election in affiliation with that party. Independent candidates will not count for any party.

Taiwan’s local governments include the following cities, special municipalities, and counties:

Cities/special municipalities (mayoral elections): Taipei City, New Taipei City, Taoyuan City, Taichung City, Tainan City, Kaohsiung City, Keelung City, Hsinchu City, Chiayi City

Counties (magistrate elections): Yilan County, Hsinchu County, Miaoli County, Changhua County, Nantou County, Yunlin County, Chiayi County, Pingtung County, Taitung County, Hualien County, Penghu County, Lienchiang County, Kinmen County

Only elections for the listed cities, special municipalities or counties will be counted for this market. A party will have won as soon as it becomes mathematically impossible for any other party to equal or surpass its number of wins in these elections.

In the case of a tie between two or more parties for the greatest number of relevant head of local government elections won, this market will resolve in favor of the party whose English name comes first in alphabetical order, as listed in this market group.

Resolution of this market will be based on the results of the relevant elections, once those results are official. This market will remain open until a party has won or until the results of all of the relevant elections are made official. If the results of any of the relevant 2026 Taiwanese local elections aren’t known by June 30, 2027 11:59 PM ET, the winning party will be determined based on the available results up to that point. If none of the results of the relevant 2026 Taiwanese local elections are known by that time, this market will resolve to “Other”.

This market will resolve based on the results of the elections as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Taiwanese government, specifically the Central Election Commission (https://db.cec.gov.tw/).

Will Kuomintang (KMT) win the most head of local government elections in the 2026 Taiwan local elections?

The 2026 midterm elections for the US House of Representatives is scheduled to be held on November 3, 2026. 

This market will resolve to "Yes" if Republicans hold fewer seats in the House of Representatives for any state that Trump won in the 2024 US presidential election as a result of the 2026 midterm elections. Otherwise, this market will resolve to "No". 

Initial seat counts will be based on the composition of the US House of Representatives as of November 2, 2026, 11:59PM ET.

This market's resolution will be solely based on the number of seats held by the Republican Party in the US House of Representatives for any state won by Trump in the 2024 Presidential election. The loss of particular district seats will not count towards a resolution for this market; only the total number of seats held by the Republican Party in a given state will be considered. (e.g. The loss of a particular district's seat by the Republican Party followed by the gain of another district's seat would not be sufficient to resolve this market to "Yes".)

​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.

For the purposes of this market, states won by Trump in the 2024 Presidential election include Alabama, Alaska, Arizona, Arkansas, Florida, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Montana, Nebraska, Nevada, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, West Virginia, Wisconsin, and Wyoming. This list is determined by the winner of the electoral votes for each state in the 2024 Presidential election. In states such as Maine and Nebraska, where electoral votes are allocated separately by congressional districts as well as to the statewide winner, only the electoral votes allocated to the statewide winner are considered.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Will Republicans lose a seat in the House of Representatives in any state Trump won in 2024?

The 2025 election for half of the seats in Argentina's Chamber of Deputies is scheduled to be held on October 26, 2025.

This market will resolve to the political party that controls the most seats in Argentina's Chamber of Deputies as a result of the upcoming election.

If voting in the next Argentine election for the Chamber of Deputies does not occur by June 30, 2026, this market will resolve to "Other".

In the case of a tie between this party and any other for the most seats held, this market will resolve in favor of the party whose listed abbreviation comes first in alphabetical order.

This market's resolution will be based solely on the number of seats held by the named party or coalition.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by Argentina's government (e.g. via https://www.electoral.gob.ar/nuevo/index.php).

Will LLA hold the most seats in the Chamber of Deputies following the 2025 Argentina election?

Parliamentary elections to elect the Landtag of Rhineland-Palatinate are scheduled to take place in Rhineland-Palatinate on March 22, 2026.

This market will resolve to the political party that wins the greatest number of seats in the formal deliberative assembly of Rhineland-Palatinate (Landtag) as a result of this election.

If voting in the Rhineland-Palatinate election for the Landtag does not occur by July 31, 2026, this market will resolve to "Other".

In the case of a tie between this party or coalition and any other for the most seats won, this market will resolve in favor of the party or coalition whose listed abbreviation comes first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition.

This market will resolve based on the election results, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Election Office of Rhineland-Palatinate (Landeswahlleiter Rheinland-Pfalz https://www.wahlen.rlp.de/landtagswahl/ergebnisse)

Will CDU win the most seats in the 2026 Rhineland-Palatinate parliamentary elections?

The 2025 Dutch general election is scheduled to take place on October 29, 2025.

This market will resolve to the first ruling coalition of parties that forms after the 2025 Dutch general election.

If the next Dutch Government after the election is not announced by October 31, 2026, this market will resolve to "No Coalition by October 31".

A party will only be considered part of the coalition if it signs the coalition agreement and provides at least one cabinet minister.

This market may resolve once the first government is officially announced and sworn in by the monarch, with ministers appointed under non-caretaker circumstances.

The following parties will be to be considered for this market: PVV, GroenLinks–PvdA, VVD, CDA, D66, JA21. All other parties (including but not limited to SP, BBB, NSC, DENK, PvdD, FvD, SGP, CU, and Volt) will not be considered. 

Resolution will be based on the listed option that most completely matches the parties included. If the coalition formed after the election includes all of the parties listed in a market option (along with any other parties), that option will resolve to “Yes” unless there exists another market option that more completely covers the coalition.

For example:

If the governing coalition includes GL–PvdA + VVD + CDA + JA21, but no option explicitly lists those four together, the market will resolve to “VVD + CDA + JA21”.

If the governing coalition includes PVV + VVD + CDA + D66, the option “PVV + VVD + CDA + D66” will resolve to “Yes”, while “PVV + VVD + CDA” will resolve to “No".

If the governing coalition does not match any listed option (e.g. the governing coalition is D66 + JA21) this market will resolve to “Other”. 

In the event that multiple market options each contain an equal number of coalition parties, the tie will be resolved in favor of the option whose listed parties together hold the greater number of seats in the newly elected House of Representatives. If this presents another tie, this market will resolve in favor of the listed coalition which received the greater number of valid votes.

This market will resolve based on a consensus of credible reporting. In case of ambiguity, this market will resolve based on official information from the Government of the Netherlands.

Will the next Dutch government be VVD + CDA + D66?

The 2025 Hong Kong Legislative Council General Election is scheduled to be held on 7 December 2025.

This market will resolve to “Yes” if more than 40.0% of the 20 Geographical Constituency seats (i.e., more than 8 seats) in the 2025 Hong Kong Legislative Council election are won by candidates who did not hold a Geographical Constituency seat in the previous term. Otherwise, this market will resolve to “No”.

For the purpose of this market, a “new” member is defined as an individual who did not serve as a legislator for any of the 20 Geographical Constituency seats in the immediately preceding Legislative Council term. Prior service in Functional Constituency or Election Committee seats will not affect eligibility to be counted as “new”.

If exactly 8 of the 20 seats (40.0%) are won by new members, this market will resolve to “No”.

If, for any reason, the results of this election are not published by January 31, 2026,11:59 PM ET, this market will resolve 50-50

Primary resolution source: The official Hong Kong 2025 Legislative Council General Election website (https://www.elections.gov.hk/legco2025/eng/index.html); however, a consensus of credible reporting may also be used.

Hong Kong Election: Geographical Constituency Seat Turnover >40%?

This market will resolve to "Yes" if the listed party is a part of the first Dutch government formed after the 2025 general election scheduled to take place October 29. Otherwise, this market will resolve to "No".

A party will only be considered part of the coalition if it signs the coalition agreement and provides at least one cabinet minister to the ruling government. Parties that merely provide external support (“gedoogsteun”) without holding ministerial positions will not qualify.

This market may resolve once the first government is officially announced and sworn in by the monarch, with ministers appointed under "non-caretaker circumstances."

If no government is formed by December 31, 2026, 11:59 PM ET, or if another election is called without a government being formed this market will resolve to "No". 

The primary resolution source for this market will be the official announcements from the governing coalition; however, a consensus of credible reporting may also be used.

Will D66 be part of the next Government of the Netherlands?

This market will resolve according to the winner of the 2026 midterm Kentucky U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Republicans win the Kentucky Senate race in 2026?

The 2028 United States presidential election will be held on Tuesday, November 7, 2028.

This market will resolve to the political party whose candidate is elected the next President of the United States in the 2028 election.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same party. If all three sources haven’t called the race for the same party by the inauguration date (January 20, 2029) this market will resolve based on who is inaugurated.

Will the Democrats win the 2028 US Presidential Election?

This market will resolve to “Yes” if, between the Democratic Party and the Republican Party, the Democratic Party becomes the favorite in the "Which party will win the Senate in 2026?" market (https://polymarket.com/event/which-party-will-win-the-senate-in-2026?tid=1764796601244) for any four-hour period ending by March 31, 2026, 11:59 PM ET or earlier. Otherwise, this market will resolve to “No”.

The Democratic Party will be considered to have become the favorite for any four-hour period if it is ahead of the Republican Party in more individual minutes than the Republican Party is ahead of the Democratic Party during a qualifying time period.

A tie in the number of minutes will not qualify.

The resolution source will be the underlying minute-level price data for the “Which party will win the Senate in 2026?” market, which can be viewed using the bar chart on https://derivative.polymarket.com/index/2026-us-senate-election-democrats-flip-republicans-by or through the “Resolution” tab with the time set to show the four-hour window. Both interfaces display the same underlying data.

Note: This market will resolve according to the price scoring methodology of derivative.polymarket.com.

2026 U.S. Senate Election: Democrats flip Republicans by March 31?

This market will resolve to “Yes” if Keir Starmer ceases to be the Prime Minister of the United Kingdom for any period of time between November 5, 2025, and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.

An announcement of Keir Starmer's resignation/removal before this market's end date will immediately resolve this market to "Yes", regardless of when the announced resignation/removal goes into effect.

The resolution source for this market will be the government of the UK, however a consensus of credible reporting will also suffice.

Starmer out by December 31, 2026?

South Korean local elections are scheduled to be held on June 3, 2026. 

This market will resolve according to the party whose official candidates win the most head of local government (Mayor or Governor) elections for South Korea’s upper-level local governments during these elections.

A candidate will be considered an official candidate of a party if they are officially nominated by that party and are registered for the relevant election in affiliation with that party. Independent candidates will not count for any party.

South Korea’s upper-level local governments include the following cities and provinces:

Cities (mayoral elections): Seoul, Busan, Daegu, Incheon, Gwangju, Daejeon, Ulsan, & Sejong

Provinces (governor elections): Gyeonggi, North Chungcheong, South Chungcheong,  North Jeolla, South Jeolla, North Gyeongsang, South Gyeongsang, Jeju, & Gangwon.

A party will have won as soon as it becomes mathematically impossible for any other party to equal or surpass its number of wins in these elections.

In the case of a tie between two or more parties for the greatest number of head of local government elections won, this market will resolve in favor of the party whose English name comes first in alphabetical order, as listed in this market group.

Resolution of this market will be based on the results of the relevant elections, once those results are official. This market will remain open until a party has won or until the results of all of the relevant elections are made official. If the results of any of the relevant 2026 South Korean local elections aren’t known by January 31, 2027 11:59 PM ET, the winning party will be determined based on the available results up to that point. If none of the results of the relevant 2026 Korean local elections are known by that time, this market will resolve to “Other”.

This market will resolve based on the results of the elections as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the South Korean government, specifically the National Election Commission.

Will the Democratic Party of Korea (DP) win the 2026 South Korean local elections?

This market will resolve according to the winner of the 2026 midterm Virginia U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the Virginia Senate race in 2026?

This market will resolve to “Yes” if the “Yes” option for 'Republican Party' in the "Which party will win the House in 2026?" market  (https://polymarket.com/event/which-party-will-win-the-house-in-2026?) is priced over the listed value for any four-hour period ending by March 31, 2026, 11:59 PM ET or earlier. Otherwise, this market will resolve to “No”.

A tie in the number of minutes will not suffice.

The resolution source will be the underlying minute-level price data for 'Republican Party' in the "Which party will win the House in 2026?" market, which can be viewed using the bar chart on https://derivative.polymarket.com/index/2026-us-house-election-republican-odds-over-25-by-march-31-2 or through the “Resolution” tab with the time set to show the four-hour window. Both interfaces display the same underlying data.

Note: This market will resolve according to the price scoring methodology of derivative.polymarket.com.

2026 U.S. House Election: Republican Odds over 25% by March 31?

This market will resolve according to the winner of the 2026 Massachusetts gubernatorial election.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the Massachusetts governor race in 2026?

Parliamentary elections are scheduled to be held in Colombia on 8 March 2026.

This market will resolve to the political party that wins the greatest number of seats in the Colombian Chamber of Representatives.

If voting in the Colombian Chamber of Representatives election does not occur by December 31, 2026, this market will resolve to "Other".

In the event of a tie between this party and any other for the most seats won, this market will be resolved in favor of the party or coalition whose listed abbreviation appears first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition in the Senate.

This market will resolve based on the election results, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by Colombia's National Civil Registry (Registraduría Nacional del Estado Civil) (https://registraduria.gov.co).

Will PLC win the most seats in the 2026 Colombian Chamber of Representatives election?

This market will resolve to “Yes” if an America Party candidate wins a U.S. federal congressional or state gubernatorial election by December 31, 2025, 11:59 PM ET. 

The candidate may appear on the ballot as “America Party,” “Independent,” or with no party listed, as long as they have formally declared their affiliation with the America Party.

Expressions of interest, financial donations, or statements of ideological sympathy will not alone qualify unless accompanied by a clear claim of party affiliation.

Candidates listed on the ballot as members of another established party (e.g., Democrats, Republicans, Libertarians, etc.) will not qualify, even if they express support for or claim affiliation with the American Party or Elon Musk.

This market will resolve based on a consensus of credible reporting.

America Party wins a federal or gubernatorial election in 2025?

This market will resolve according to the winner of the 2026 midterm Kansas U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Republicans win the Kansas Senate race in 2026?

Parliamentary elections are scheduled to be held in Costa Rica on 1 February 2026.

This market will resolve to the political party that wins the greatest number of seats in the Costa Rican Legislative Assembly.

If voting in the Costa Rican Legislative Assembly election does not occur by December 31, 2026, this market will resolve to "Other".

In the event of a tie between this party and any other for the most seats won, this market will be resolved in favor of the party or coalition which received a greater number of valid votes. In the event that results in a tie, this market will resolve in favor of the party or coalition whose listed abbreviation appears first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition in the Legislative Assembly.

This market will resolve based on the election results, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by Costa Rica's Supreme Electoral Tribunal (Tribunal Supremo de Elecciones) (https://www.tse.go.cr/index.html).

Will PPSO win the most seats in the 2026 Costa Rican Legislative Assembly election?

This market will resolve according to the election or referendum won by Democrats with the highest margin of victory compared to the other listed events, all scheduled for November 4, 2025:

- Virginia Governor election
- Virginia House of Delegates election
- New Jersey Governor election
- New York City Mayor election
- California referendum “Proposition 50”

If the results of any of these elections are not confirmed by July 31, 2026, this market will be resolved according to the results published thus far.

The primary resolution source for this market will be a consensus of credible reporting; however, if there is any ambiguity in the results, this market will resolve according to official election authority sources conducting the election.

Will the California Proposition 50 referendum have the largest Democratic margin of victory?

This market will resolve according to the winner of the 2026 New Hampshire gubernatorial election.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Republicans win the New Hampshire governor race in 2026?

Parliamentary elections are scheduled to be held in Guinea-Bissau on November 23, 2025.

This market will resolve to the political party or coalition that wins the greatest number of seats in the National People's Assembly of Guinea-Bissau.

If voting in the National People's Assembly of Guinea-Bissau election does not occur by December 31, 2026, this market will resolve to "Other".

In the event of a tie between this party or coalition and any other for the most seats won, this market will be resolved in favor of the party or coalition whose listed abbreviation or name appears first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition in the National People's Assembly.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the government of Guinea-Bissau, specifically the National Election Commission (Comissão Nacional de Eleições, CNE) (http://www.cne.gw/).

Will Platforma Reupblicana “Nô Kumpu Guiné” win the most seats in the 2025 Guinea-Bissau National People’s Assembly election?

The 2026 midterm elections for the US Senate is scheduled to be held on November 3, 2026. 

This market will resolve to "Yes" if Republicans hold fewer seats in the Senate for any state that Trump won in the 2024 US presidential election as a result of the 2026 midterm elections. Otherwise, this market will resolve to "No". 

Initial seat counts will be based on the composition of the US Senate as of November 2, 2026, 11:59PM ET.

This market's resolution will be solely based on the number of seats held by the Republican Party in the US Senate for any state won by Trump in the 2024 Presidential election. The loss of particular seat will not count towards a resolution for this market; only the total number of seats held by the Republican Party in a given state will be considered. (e.g. The loss of one of a state's seats by the Republican Party followed by the gain of the other seat would not be sufficient to resolve this market to "Yes".)

​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources.

For the purposes of this market, states won by Trump in the 2024 Presidential election include Alabama, Alaska, Arizona, Arkansas, Florida, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Montana, Nebraska, Nevada, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, West Virginia, Wisconsin, and Wyoming. This list is determined by the winner of the electoral votes for each state in the 2024 Presidential election. In states such as Maine and Nebraska, where electoral votes are allocated separately by congressional districts as well as to the statewide winner, only the electoral votes allocated to the statewide winner are considered.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Will Republicans lose a seat in the US Senate for any state Trump won in 2024?

This market will resolve according to the candidate who wins the nomination for the Republican Party to contest the KY-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Republican primary will take place on May 19, 2026.

If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other".

The resolution source for this market will be a consensus of official Republican sources, including https://www.rnc.org/.

Any replacement of the nominee before election day will not change the resolution of the market.

Will Thomas Massie be the Republican nominee for KY-04?

This market will resolve according to the winner of the 2026 midterm Texas U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Republicans win the Texas Senate race in 2026?

This market will resolve according to the winner of the 2026 Kansas gubernatorial election.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Republicans win the Kansas governor race in 2026?

This market will resolve according to the winner of the 2026 midterm Delaware U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the Delaware Senate race in 2026?

This market will resolve according to the winner of the 2026 midterm North Carolina U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the North Carolina Senate race in 2026?

This market will resolve according to the candidate who wins the nomination for the Democratic Party to contest the NH-01 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Democratic primary will take place on September 8, 2026.

If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other".

The resolution source for this market will be a consensus of official Democrat sources, including https://democrats.org/.

Any replacement of the nominee before election day will not change the resolution of the market.

Will Maura Sullivan be the Democratic nominee for NH-01?

This market will resolve according to the winner of the 2026 midterm Alabama U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Republicans win the Alabama Senate race in 2026?

This market will resolve based on the number of the following five elections won by the Democratic Party, all scheduled for November 4, 2025. Each event will count as one Democratic win if it occurs:

- Democrats win the Virginia Governor's elections
- Democrats win the Virginia House of Delegates
- Democrats win the New Jersey Governor elections
- Mamdani wins the New York City Mayor election
- California referendum "Proposition 50" passes

Any other elections occurring in November 2025 that are not explicitly listed here will have no bearing on this market’s outcome.

The primary resolution source for this market will be a consensus of credible reporting. In the event of ambiguity, the market will resolve according to official results published by the jurisdiction’s election authority.

This market will remain open until the official certified results of the listed elections are published. In the case of a tie, the winner determined by the jurisdiction’s official tiebreak mechanism will prevail.

Will Democrats win five elections in Nov?

Parliamentary elections are scheduled to be held in Costa Rica on February 1, 2026.

This market will resolve to the political party that wins the second greatest number of seats in the Costa Rican Legislative Assembly in this election.

If voting in the Costa Rican Legislative Assembly election does not occur by December 31, 2026, this market will resolve to "Other".

In the event of a tie between this party and any other for the second most seats won, this market will resolve in favor of the party or coalition which received a greater number of valid votes. In the event that results in a tie, this market will resolve in favor of the party or coalition whose listed abbreviation appears first in alphabetical order.

This market's resolution will be based solely on the number of seats won by the named party or coalition in the Legislative Assembly.

This market will resolve based on the election results as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by Costa Rica's Supreme Electoral Tribunal (Tribunal Supremo de Elecciones) (https://www.tse.go.cr/index.html).

Will PENAC win the second most seats in the 2026 Costa Rican Legislative Assembly election?

This market will resolve according to the winner of the Republican Primary for United States Senator from Kentucky.

If no 2026 Kentucky Republican Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Kentucky Republican party, however an overwhelming consensus of credible reporting may suffice.

Will Andy Barr be the Republican nominee for Senate in Kentucky?

This market will resolve according to the winner of the 2026 midterm Georgia U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the Georgia Senate race in 2026?

This market will resolve according to the winner of the 2026 midterm Colorado U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the Colorado Senate race in 2026?

This market will resolve according to the winner of the 2026 midterm Maine U.S. Senate election, inclusive of any run-offs.

A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.

Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Will the Democrats win the Maine Senate race in 2026?

This market will resolve according to the winner of the Republican Primary for United States Senator from New Hampshire.

If no 2026 New Hampshire Republican Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the New Hampshire Republican party, however an overwhelming consensus of credible reporting may suffice.

Which party wins the most seats after UK Election?

Labour
$350,274 Vol.
Yes

Conservative
$227,754 Vol.
No

Lib Dems
$209,460 Vol.
No

Reform
$452,437 Vol.
No

Other
$523,949 Vol.
No

Market Context

Which party wins the most seats after UK Election?

Rules

Which party wins the most seats after UK Election?

Market Context

Which party wins the most seats after UK Election?

About

Related

Which party wins the most seats after UK Election?

Labour$350,274 Vol.Yescircle check

Conservative$227,754 Vol.Nocircle xmark

Lib Dems$209,460 Vol.Nocircle xmark

Reform$452,437 Vol.Nocircle xmark

Other$523,949 Vol.Nocircle xmark

Market Context

Which party wins the most seats after UK Election?

Rules

Which party wins the most seats after UK Election?

Market Context

Which party wins the most seats after UK Election?

About

Related

Labour
$350,274 Vol.
Yes

Conservative
$227,754 Vol.
No

Lib Dems
$209,460 Vol.
No

Reform
$452,437 Vol.
No

Other
$523,949 Vol.
No