
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · Yes
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Will Republicans lose a seat in the US Senate for any state Trump won in 2024?
Will Democrats win a 2026 Governor election in a state trump won?
If Trump won the election, Will the U.S. be more democratic in 2025 than it was in 2022?
How many Trump-won districts will Democrats win in 2026?
Will the 2028 Democratic presidential candidate win any state trump won by 10% or more in 2024?
Will Republicans lose House majority before the midterms?
Rules
The 2026 midterm elections for the US House of Representatives is scheduled to be held on November 3, 2026.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/will-republicans-lose-a-seat-in-the-house-of-representatives-in-any-state-trump-won-in-2024AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+17 more outcomes
+5 more outcomes
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