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

Ends: Nov 3, 2026, 24:00 UTCMarket data: Aug 2, 2026, 08:11 UTC

VERDICTINSUFFICIENT DATA

POLYMARKET VS MARX FAIR

Probability divergence over time

POLYMARKET YES 55.0%MARX FAIR YES -
YES probability: Polymarket versus Marx Fair0255075100
MARX FAIRFair Price was not published: reliable data is insufficient.
Jul 26, 08:41 AMJul 28, 02:34 AMJul 29, 08:26 PMJul 31, 02:19 PMAug 02, 08:11 AM UTC

YES probability: Polymarket versus Marx Fair

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-08-02T02:42:11.147Z55.5%-
2026-08-02T02:54:37.019Z55.0%-
2026-08-02T03:07:27.875Z55.0%-
2026-08-02T03:18:36.745Z55.0%-
2026-08-02T03:29:08.181Z55.0%-
2026-08-02T03:41:59.739Z55.0%-
2026-08-02T03:54:22.579Z55.0%-
2026-08-02T04:07:36.477Z55.0%-
2026-08-02T04:17:54.241Z55.0%-
2026-08-02T04:28:18.434Z55.0%-
2026-08-02T04:39:17.956Z55.0%-
2026-08-02T04:50:00.714Z55.0%-
2026-08-02T05:00:34.503Z55.0%-
2026-08-02T05:11:01.913Z55.0%-
2026-08-02T05:21:36.164Z55.0%-
2026-08-02T05:37:07.755Z55.0%-
2026-08-02T05:48:55.742Z55.0%-
2026-08-02T05:59:27.843Z55.0%-
2026-08-02T06:10:06.745Z55.0%-
2026-08-02T06:20:23.253Z55.0%-
2026-08-02T06:33:10.697Z55.0%-
2026-08-02T06:44:56.398Z55.0%-
2026-08-02T06:55:57.773Z55.0%-
2026-08-02T07:08:19.262Z55.0%-
2026-08-02T07:19:57.138Z55.0%-
2026-08-02T07:33:16.795Z55.0%-
2026-08-02T07:44:00.492Z55.0%-
2026-08-02T07:57:08.396Z55.0%-
2026-08-02T08:08:32.596Z55.0%-
2026-08-02T08:11:43.247Z55.0%-

INSUFFICIENT DATA

  • No independent estimate was published; the market price is not presented as Marx Fair.
  • Data validation status: NOT PUBLISHED.
  • A signal is published only after the evidence passes quality checks.

There is not enough reliable data to calculate a fair probability.

KEY RISKS

  • New information and resolution rules can change the estimate.

RESOLUTION CRITERIA

This market will resolve according to the party that controls the Senate following the 2026 U.S. Senate elections scheduled for November 3, 2026. Senate control is defined as having more than half of the voting Senate members, or half of the voting Senate members and the Vice Presidency. If the outcome of this election is ambiguous given the above rules, this market will remain open until the Majority Leader of the US Senate is selected following the 2026 US general election, at which point it will resolve to the party the majority leader is affiliated with at the time of their election to that position. If the elected majority leader does not caucus with any listed party this market will resolve “Other”. Determination of which party controls the Senate after the 2026 US Senate elections will be based on a consensus of credible reporting, or if there is ambiguity, final federal and/or state election authority certification or other final official determination of the 2026 election results.

AntiPredict provides probabilistic analysis for informational purposes. Predictions are uncertain and may be wrong. This is not financial advice.