Trader consensus heavily favors Democrats at 85.5% implied probability to gain House control in the November 3, 2026 midterms, reflecting the historical midterm penalty on the president's party—averaging 28 seat losses since 1950—exacerbated by Republicans' razor-thin current 217-214 majority amid three vacancies and 1 independent. Recent generic ballot polls show Democrats leading by 5.3% on average as of late March (e.g., YouGov/Economist +6%, Quinnipiac +11%), fueled by surging crude oil above $100/barrel and national gas prices up $1/gallon by March 24, pressuring GOP incumbents. Heavier Republican retirements (36 vs. 22 Democratic) and mid-decade redistricting shifts open paths in 42 battleground districts, though economic rebounds or foreign policy de-escalations could narrow the gap ahead of primaries.
Experimental AI-generated summary referencing Polymarket data · UpdatedWhich party will win the House in 2026?
Which party will win the House in 2026?
$4,099,464 Vol.
$4,099,464 Vol.

Democratic Party
86%

Republican Party
15%
$4,099,464 Vol.
$4,099,464 Vol.

Democratic Party
86%

Republican Party
15%
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.
Trader consensus heavily favors Democrats at 85.5% implied probability to gain House control in the November 3, 2026 midterms, reflecting the historical midterm penalty on the president's party—averaging 28 seat losses since 1950—exacerbated by Republicans' razor-thin current 217-214 majority amid three vacancies and 1 independent. Recent generic ballot polls show Democrats leading by 5.3% on average as of late March (e.g., YouGov/Economist +6%, Quinnipiac +11%), fueled by surging crude oil above $100/barrel and national gas prices up $1/gallon by March 24, pressuring GOP incumbents. Heavier Republican retirements (36 vs. 22 Democratic) and mid-decade redistricting shifts open paths in 42 battleground districts, though economic rebounds or foreign policy de-escalations could narrow the gap ahead of primaries.
Experimental AI-generated summary referencing Polymarket data · Updated

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