2026 Midterms: Control of Congress Odds

Prediction markets price 2026 Balance of Power: D Senate, D House at 62.5%.

62.5%0.0 pts 24h

2026 Balance of Power: D Senate, D House

Updated · Volume $24.4M

57%61%65%69%Sep 17Sep 25Oct 2Oct 9Oct 17
OutcomeProbability24h
2026 Balance of Power: D Senate, D House62.5%0.0
2026 Balance of Power: R Senate, D House27.5%-1.0
2026 Balance of Power: R Senate, R House8.5%0.0
2026 Balance of Power: D Senate, R House0.9%0.0
2026 Balance of Power: Other0.1%0.0

The top 5 outcomes account for 100.0% of the total probability.

Context

This probability comes from live prices on prediction markets, where a contract's price equals the implied chance of the outcome. It updates continuously as trading occurs.

This market has 5 tracked outcomes and $24.4M in total trading volume.

The most closely contested outcome, 2026 Balance of Power: D Senate, D House, is priced at 62.5%.

Data: Polymarket · Methodology · Not financial advice

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