2026 U.S. House election: Republicans flip the Democrats by...?

Market Overview

Markets are sorted by active status and volume. Probability history is fetched from Polymarket CLOB for the top market token IDs, similar to Bitcoin.com Markets.

Event Description

This market will resolve to “Yes” if, between the Republican Party and the Democratic Party, the Republican Party becomes the favorite in the "Which party will win the House in 2026?" market (https://polymarket.com/event/which-party-will-win-the-house-in-2026?tid=1764045739181) for any four-hour period ending by December 31, 2025, 11:59 PM ET or earlier. Otherwise, this market will resolve to “No”. The Republican Party will be considered to have become the favorite for any four-hour period if it is ahead of the Democratic Party in more individual minutes than the Democratic Party is ahead of the Republican Party during a qualifying time period. A tie in the number of minutes will resolve to "No". The resolution source will be the underlying minute-level price data for the “Which party will win the House in 2026?” market, which can be viewed using the bar chart on https://derivative.polymarket.com/index/will-the-republicans-flip-the-democrats-for-the-2026-us-house-elections-by or through the “Resolution” tab with the time set to show the four-hour window. Both interfaces display the same underlying data. Note: This market will resolve according to the price scoring methodology of derivative.polymarket.com.

Event Stats

Event ID

90451

Start Date

Dec 2, 2025, 6:04 PM

End Date

Mar 31, 2026, 12:00 AM

Total Markets

2

Total Volume

28.38K

Liquidity

5.74K

Last Updated

Mar 15, 2026, 11:46 PM