Democratic leads on generic ballot polling averages, steady at D+5.6 as of April 18 per Nate Silver's model, combined with disproportionate Republican retirements—35 incumbents versus 20 Democrats—drive trader consensus to an 84.5% implied probability of Democrats capturing House control in the November 2026 midterms. Republicans defend a narrow 217-214 majority with four vacancies, facing historical midterm headwinds for the president's party averaging 26-seat losses. Recent developments include GOP exits like Reps. Graves (March 27) and Hern (March 11), alongside Democratic holds in April special elections in New Jersey and Georgia, sustaining momentum despite some redistricting gains for Republicans. Primaries this summer in swing states could tip battlegrounds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWhich party will win the House in 2026?
Which party will win the House in 2026?
$4,639,137 Vol.
$4,639,137 Vol.

Democratic Party
85%

Republican Party
16%
$4,639,137 Vol.
$4,639,137 Vol.

Democratic Party
85%

Republican Party
16%
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.
Market Opened: Jul 11, 2025, 3:48 PM ET
Resolver
0x2F5e3684c...We anticipate rolling out a new rewards and oracle-resolution system later this year that will generate returns on your positions, at which point there will be a simple 1-click migration.
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.
Resolver
0x2F5e3684c...We anticipate rolling out a new rewards and oracle-resolution system later this year that will generate returns on your positions, at which point there will be a simple 1-click migration.
Democratic leads on generic ballot polling averages, steady at D+5.6 as of April 18 per Nate Silver's model, combined with disproportionate Republican retirements—35 incumbents versus 20 Democrats—drive trader consensus to an 84.5% implied probability of Democrats capturing House control in the November 2026 midterms. Republicans defend a narrow 217-214 majority with four vacancies, facing historical midterm headwinds for the president's party averaging 26-seat losses. Recent developments include GOP exits like Reps. Graves (March 27) and Hern (March 11), alongside Democratic holds in April special elections in New Jersey and Georgia, sustaining momentum despite some redistricting gains for Republicans. Primaries this summer in swing states could tip battlegrounds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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