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Will the Republican Party hold below 190 House seats after the 2026 midterm elections?

33.5%
Consensus Probability (Model B — Geometric Mean of Odds)
1 platforms · 0pp spread · $9K

Across 1 prediction market platform, "Will the Republican Party hold below 190 House seats after the 2026 midterm elections?" has a consensus probability of 33.5%. Polymarket: 33.5%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Polymarket
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34%
$9K
Probability Over Time
Market Details
Polymarket
Updated 14m ago
Volume
$9K
Liquidity
$12K
Bid / Ask
33.0% / 34.0%
Spread
1.0%
Opened
Apr 2026
Resolves
Nov 2026
The 2026 midterm elections are scheduled to be held on November 3, 2026. This market will resolve according to the number of seats held by the Republican Party in the US House of Representatives as a result of the 2026 midterm elections. This market will resolve based on the re…

About This Consensus

Computed from 1 platform using geometric mean of odds (Satopaa et al., 2014). This method was validated by the IARPA ACE forecasting tournament as the most accurate probability aggregation technique. Full methodology →

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