Will Republicans hold 50–52 Senate seats and 223+ House seats after the 2026 midterms?

How many Senate and House seats will Republicans have after the midterms?$14k liquidity$424 volumecloses 2.8mo
MidtermsPoliticsElectionsSenate racesHouse ElectionsUS Election
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BUY YES

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Cost
6.6¢
Implied chance
6.6%
Return if right
1415.2%
Spread cost
8%

If you put in $100

You get 1515.2 shares at 6.6¢ each.

YES wins: $1515.15 back, a profit of $1415.15. YES loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $124.19 of that profit. Without it you would make $1539.34.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy YES on Polymarket

Buy NO on Polymarket

BUY NO

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We keep it in one place with the price you saw, and email you when it settles or moves sharply. It is free, and the screener stays open to everyone either way.

Cost
94.4¢
Implied chance
94.4%
Return if right
5.9%
Spread cost
9%

If you put in $100

You get 105.9 shares at 94.4¢ each.

NO wins: $105.93 back, a profit of $5.93. NO loses: $0.00, and the whole $100 is gone.

The gap between buyers and sellers takes $0.56 of that profit. Without it you would make $6.50.

Assumes the whole order fills at this price. A large order eats into the book and averages worse.

Buy NO on Polymarket

Chance over time

0%25%50%75%100%Aug 3Aug 10

Latest: Aug 10, 11:48 AM1 outcome stayed under 3% and is not plotted3 further outcomes not shown

Latest news

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How this market resolves

The 2026 midterm elections are scheduled to be held on November 3, 2026. This market will resolve according to the number of seats held by the Republican Party in both the US House of Representatives and the US Senate as a result of the 2026 midterm elections. The number of House seats held by the Republican Party will be determined based upon the results of all US House of Representatives elections for voting members, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources. The number of Senate seats held by the Republican party based on both the composition of seats that are not up for election and the results of all Senate elections, including special elections, that are scheduled to occur in November 2026 as of October 31, 2026. If a required runoff for any such election could change the market’s outcome, the market will remain open until that runoff is conclusively called by this market’s resolution sources. If a Senate seat is vacant but a corresponding election is not held in November 2026, the seat will be considered held by the party of the seat's most recent incumbent. 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 Democratic 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. 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 all Senate 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.

Other outcomes in How many Senate and House seats will Republicans have after the midterms?

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