theorypedia

The 2026 US Midterm Elections

Status
Tracking · Resolves Nov 3, 2026
Event began
Nov 3, 2026
Theories tracked
9
Last updated
Sep 3, 2026, 10:00 AM

Prediction Market Signal

  • Democrats control the House after the midterms?

    87%▼ −1 pts 24h

    Yes 86.5¢ · No 13.5¢

    since Mar 2026

    via Polymarket ↗

    $6,053,315 traded

  • Democrats control the Senate after the midterms?

    53%

    Yes 52.5¢ · No 47.5¢

    since Mar 2026

    via Polymarket ↗

    $2,510,353 traded

Markets price outcomes. The Plausibility Index™ ranks explanations.

Plausibility Over Time
The Trump-only coalition doesn't transfer
The midterm is a referendum on the president
It's a cost-of-living referendum
The map mutes the wave
The specials are the signal
Trump's endorsements are selecting weaker general-election candidates
The specials are an artifact
The polls understate Republicans again
The realignment is durable
Latest Developments

Judge Indira Talwani blocks USPS mail-ballot rules before midterms | Fox News

A federal judge blocked new USPS mail-ballot rules just before the midterms — raising the question of whether courts or agencies should set election procedure.

foxnews.comPolitics
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RCP Polling Minute: Senate Midterm Map Shifts as New Hampshire Becomes Toss-Up

New Hampshire flipping to toss-up status six months before midterms signals how quickly Senate maps can redraw themselves around shifting poll numbers.

yahoo.comPolitics
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Millions of Dollars in Secret Spending Could Upend the 2026 Midterms | Daniel Weiner

Millions in untraceable "dark money" could quietly reshape which candidates survive the 2026 midterms — raising the question of whether hidden donors now outweigh voters.

linkedin.comPoliticsEconomics
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Whistleblower says USPS system Trump ordered for mail ballots is flawed and untested

A whistleblower claims the USPS mail-ballot system Trump ordered for 2026 is flawed and untested — raising the question of whether election infrastructure is being rushed at voters' expense.

nbcnews.comPoliticsTechnology
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El-Sayed edges Rogers in Michigan Senate poll - The Hill

A Michigan Senate poll shows El-Sayed edging Rogers — testing whether a progressive outsider can flip a Trump-era seat in a key swing state.

thehill.comPolitics
Politics
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Democrats appear more fired up for midterms, Reuters/Ipsos poll finds - Threads

A Reuters/Ipsos poll shows Democrats more energized ahead of 2026 midterms — raising whether enthusiasm gaps actually predict election outcomes or just reflect the moment.

threads.comPoliticsPsychology
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Polymarket on X: "BREAKING: Democrats are now projected to sweep the 2026 midterms ...

A 51% projected Democratic sweep of both chambers in 2026 — barely above a coin flip, yet framed as a "BREAKING" political shift.

x.comPoliticsEconomics
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Millions of Dollars in Secret Spending Could Upend the 2026 Midterms - GV Wire

Secret millions are already flowing into 2026 midterm races — and the donors behind the money may never be publicly named.

gvwire.comPoliticsEconomics
Politics
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Iran war will only hurt the Republicans in the midterms, says Mick Mulvaney - CNBC

Mick Mulvaney warns an Iran war would hurt Republicans in the 2026 midterms — a rare case of a Trump insider publicly flagging electoral self-damage.

cnbc.comPoliticsEconomics
The midterm is a referendum on the president
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This boomer vs. Gen X Senate race emerges as key test of generational change in U.S. politics

A Gen X congressman is challenging a Boomer senator in 2026 — testing whether voters actually reward youth over experience when given the choice.

fortune.comPoliticsSociology
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