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2026 U.S. House election: Republicans flip the Democrats by...?
Foretrace AI research
Understand the odds. Examine the reasoning.
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
View a sample AI report No open markets in this event. Closed markets retain historical data.
24h volumeUnavailable
Total volume$63.9K
LiquidityUnavailable
Event end date · UTCMar 31, 2026
Price history
Market probabilityLoading price history…
Polymarket · UTC
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
Outcomes & resolution rules
2 marketsThese are market-implied probabilities, not AI forecasts. A displayed quote may differ from the price available for your order.
December 31ClosedMarket odds0%
2026 U.S. House election: Republicans flip the Democrats by December 31?
Yes0%Polymarket estimate
No100%Polymarket estimate
- Liquidity
- Unavailable
- Deadline · UTC
- Mar 31, 2026
- Yes bid / ask
- — / 0.1¢
- Trading fees
- Not flagged by provider
Closed market · historical data
This market is closed. Its historical data remains available.
How research worksResolution rules
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 not qualify. 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.