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Republicans hold the Senate in the 2026 midterms

Will the Republican Party control the Senate after the 2026 midterm elections?

no liveness subject (nothing to death-check)
EHIQ
68%
(60-76%)
Polymarket
37%
live market →
Edge
+31.5pp
EHIQ above market

The call vs the market, dated

EHIQ called this at 68% on September 2, 2026 when Polymarket was at 50%.
Market has since moved down to 37% · -13.0pp from open
EHIQ vs market over time · 40 data points · refreshed daily
EHIQMarket
5037%68%Sep 5Oct 12

Thesis

Democrats need a net of 4 seats on a map with only 2 Republican-held seats in genuinely competitive states (Maine, and the open North Carolina seat); the next tier (Ohio, Texas, Iowa, Florida) all went for Trump by 8 or more. Needing 2 of 4 long shots on top of sweeping the competitive pair prices well below 0.50. GRADING-LAG RISK: control can hang on one slow state; this is a record-builder whose grade may land after the 11/3 gate.
  1. 1.D needs net +4 on a 2-seat competitive map
  2. 2.next tier all Trump +8 or more
  3. 3.$1.7M venue volume behind the faded price
Opened
September 2, 2026
Expected resolution
November 3, 2026

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