Spreadiction

Republican Senate seats after the 2026 midterm elections?

A Polymarket event with 11 markets and $2.69M total volume, resolving Nov 3, 2026. Live odds for every outcome below.

Markets
11
Total volume
$2.69M
Liquidity
$391.1K
Resolves
Nov 3, 2026

Markets in this event

MarketYes24h vol
Will the Republican Party hold 57 or more Senate seats after the 2026 midterm elections?1%$1.1K
Will the Republican Party hold exactly 56 Senate seats after the 2026 midterm elections?3%$846
Will the Republican Party hold 47 or fewer Senate seats after the 2026 midterm elections?24%$333
Will the Republican Party hold exactly 48 Senate seats after the 2026 midterm elections?12%$0
Will the Republican Party hold exactly 49 Senate seats after the 2026 midterm elections?14%$0
Will the Republican Party hold exactly 50 Senate seats after the 2026 midterm elections?14%$0
Will the Republican Party hold exactly 51 Senate seats after the 2026 midterm elections?19%$0
Will the Republican Party hold exactly 52 Senate seats after the 2026 midterm elections?11%$0
Will the Republican Party hold exactly 53 Senate seats after the 2026 midterm elections?3%$0
Will the Republican Party hold exactly 54 Senate seats after the 2026 midterm elections?2%$0
Will the Republican Party hold exactly 55 Senate seats after the 2026 midterm elections?1%$0

About this event

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 the US Senate as a result of the 2026 midterm elections. This market will resolve based on 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.

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