
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 · 3
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
How many House seats will Democrats hold after the Midterms?
How many House seats will Democrats win in the Midterms?
How many House Seats will the Democrats win in the 2026 Midterms? [Exact Number]
How many House Seats will the Democrats win in the 2026 Midterms? [Add Answers]
How many House seats will Democrats hold after the Midterms? (Directional)
How many House seats will the Democrats win in 2026?
Rules
This market will resolve according to the number of seats in the US House of Representatives won by the Democratic Party in Iowa in the 2026 United States midterm election.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/how-many-house-seats-will-the-democrats-win-in-iowaAI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+2 more outcomes
+17 more outcomes
+5 more outcomes
+1 more outcomes