Will House Control be Republican AND Senate Control be Republican for Feb 2027?

Market consensus28%
+7.0pp 24h change
AI Oracle avg 8% -19.5pp
Resolves in 8mo · Total volume $5.5k · 0 participants · 1 venues tracked

Probability history

Market consensus · AI Oracle overlay

AI Oracle

Frontier model forecasts

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Grok 4
xAI
18%-9.5pp

GOP Senate map still blocks easy D-Senate flip, keeping split control plausible.

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Claude Opus 4.7
Anthropic
3%-24.5pp

Resolution requires R-House + D-Senate split; 2026 Senate map favors R, making D-Senate unlikely.

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GPT-5
OpenAI
3%-24.5pp

Midterms co-move; R House + D Senate needs opposite swings—low odds.

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Cross-venue prices

VenueYesNo24h VolumeLiquidityTrade →
Kalshi
2.2%97.8%$5.5k$0open

Movement

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Resolution criteria

If ALL of the following occur on Feb 1, 2027: House Control: Republican, Senate Control: Democratic, then the market resolves to Yes.

How is this page computed?
Prediction.Markets computes consensus by volume-weighted aggregation across Kalshi, Polymarket, and Limitless. Outlier venues are flagged when their price deviates more than 2σ from the weighted mean. AI Oracle entries are independently sampled from 3 frontier models on a daily cadence. Full methodology →