Trader consensus slightly favors Liberal Tatiana Auguste at 53.5% to reclaim the Terrebonne seat in the April 13 federal by-election, edging out Bloc Québécois challenger Nathalie Sinclair-Desgagné at 42.5% in a rematch of their razor-thin 2025 contest annulled by the Supreme Court on February 13 due to electoral irregularities. Recent polling projections, including a March 25 estimate giving Liberals 40.7% support and an 81% win probability, reflect Auguste's incumbency momentum from her brief prior term amid a fragmented field of nearly 50 candidates, with Elections Canada's adapted write-in ballots announced March 25 potentially complicating minor contenders but solidifying the top-two duel. Sinclair-Desgagné's March 12 platform launch and rallies highlight Bloc strengths in this Quebec battleground, keeping the race competitive as turnout and voter clarity loom large.
Experimental AI-generated summary referencing Polymarket data · UpdatedTerrebone By-Election Winner
Terrebone By-Election Winner
Tatiana Auguste 54%
Nathalie Sinclair-Desgagné 43%
Maria Cantore 1.6%
Maxime Beaudoin <1%
$44,263 Vol.
$44,263 Vol.

Tatiana Auguste
54%

Nathalie Sinclair-Desgagné
43%

Maria Cantore
2%

Maxime Beaudoin
1%

Adrienne Charles
<1%

Benjamin Rankin
<1%
Tatiana Auguste 54%
Nathalie Sinclair-Desgagné 43%
Maria Cantore 1.6%
Maxime Beaudoin <1%
$44,263 Vol.
$44,263 Vol.

Tatiana Auguste
54%

Nathalie Sinclair-Desgagné
43%

Maria Cantore
2%

Maxime Beaudoin
1%

Adrienne Charles
<1%

Benjamin Rankin
<1%
This market will resolve according to the candidate who wins the by-election for the Terrebonne, Quebec seat in the House of Commons of Canada.
If the results of this by-election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to “Other”.
The resolution source for this market will be a consensus of credible reporting. In case of ambiguity, this market will resolve solely based on the official election results published by the Canadian government, specifically Elections Canada (https://www.elections.ca/home.aspx).
Market Opened: Mar 23, 2026, 6:16 PM ET
Resolver
0x69c47De9D...This market will resolve according to the candidate who wins the by-election for the Terrebonne, Quebec seat in the House of Commons of Canada.
If the results of this by-election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to “Other”.
The resolution source for this market will be a consensus of credible reporting. In case of ambiguity, this market will resolve solely based on the official election results published by the Canadian government, specifically Elections Canada (https://www.elections.ca/home.aspx).
Resolver
0x69c47De9D...Trader consensus slightly favors Liberal Tatiana Auguste at 53.5% to reclaim the Terrebonne seat in the April 13 federal by-election, edging out Bloc Québécois challenger Nathalie Sinclair-Desgagné at 42.5% in a rematch of their razor-thin 2025 contest annulled by the Supreme Court on February 13 due to electoral irregularities. Recent polling projections, including a March 25 estimate giving Liberals 40.7% support and an 81% win probability, reflect Auguste's incumbency momentum from her brief prior term amid a fragmented field of nearly 50 candidates, with Elections Canada's adapted write-in ballots announced March 25 potentially complicating minor contenders but solidifying the top-two duel. Sinclair-Desgagné's March 12 platform launch and rallies highlight Bloc strengths in this Quebec battleground, keeping the race competitive as turnout and voter clarity loom large.
Experimental AI-generated summary referencing Polymarket data · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions