
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 · Democratic Party
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Related questions for context, not a comparison of equivalent contracts.
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2026 US Senate Election: will the party of the winner of this state's senate seat go on to win senate control?
Rules
This market will resolve according to the party that wins control of the Pennsylvania State Senate in the 2026 Pennsylvania midterm election.
2 venues currently price this market. CoinRithm's cross-venue reference probability for Democratic Party is 53%. The venue spread is about 1 percentage point.
CoinRithm reference Democratic Party 53% · 2 venues · 1 pt venue spread
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/pennsylvania-state-senate-winner-2026AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+125 more outcomes
+2 more outcomes
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