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Home/Politics/Republicans win a 2026 US Senate election in a state Kamala won?
ManifoldPoliticsUpdated 12m ago

Republicans win a 2026 US Senate election in a state Kamala won?

Market probability
44.1%
+3.3 percentage points
over 24 hours40.7% → 44.1%
139 days until the event deadline
Deadline: December 31, 2026 at 6:59 PM ET

A repricing with partial backing — read the new probability with some caution.

The pricing has partial support: moderate trading volume.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Moderate

The pricing has partial support: moderate trading volume.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$15.2 traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

Resolves yes if republicans (or those who caucus with) win at least one of these 2026 US Senate elections: Maine New Hampshire Minnesota Virginia New Jersey New Mexico Rhode Island Massachusetts Delaware Oregon Illinois Colorado (Identical market to: source market)

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

Resolves yes if republicans (or those who caucus with) win at least one of these 2026 US Senate elections: Maine New Hampshire Minnesota Virginia New Jersey New Mexico Rhode Island Massachusetts Delaware Oregon Illinois Colorado (Identical market to: source market)

Why the odds moved

The probability rose 3.3 percentage points over the last 24 hours (40.7% → 44.0%).

No verified catalyst has been linked to this move yet. ProbCast does not attribute moves to news without evidence connecting the timing of a specific report to the repricing.

What could move this market next?

  • The market's deadline arrivesDecember 31, 2026 at 6:59 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Aug 14, 5:47 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±26 pts.

One big traderLegacy movement classifier: watch

What's happening

medium classifier confidence
One big trader

Recent movement was driven largely by one participant with little broad follow-through. The move may not represent consensus.

Market data

24h volume

Ṁ15.2

Liquidity

Ṁ100

Total volume

Change (pts)1H0.06H-0.624H+3.37D+3.3
Score breakdown — Movement, Liquidity & Trust

ProbCast Trust Score

31/ 100 · Low

Weakly supported. Treat this number skeptically. Main caveat: thin liquidity.

ProbCast measures how reliable this market probability appears — not what to trade.

Movement31

Magnitude of recent probability change

Liquidity43

Related markets

Will Chuck Schumer announce he’s not running for reelection before EOY 2027?

56%YESTrust 32
ManifoldṀ15.2 24h
ProbCast — Odds Reliability

Know whether prediction-market odds can be trusted. ProbCast analyzes liquidity, market activity, spreads, and price movement to help distinguish meaningful repricing from thin-market noise.

Questions? Chat with us on Telegram
TodayTop MoversEventsAll MarketsWhat ChangedVenue DivergencePolymarket vs KalshiMethodologyCoverageMeta's ArenaWatchlistTerms of UsePrivacyCrypto
  • One participant drove 66% of recent flow
  • Move not broadly confirmed (2 participants)

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
1Low
Where the price path tends to go next863 observed
  • Illiquid / quiet99%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~28h
PredictabilityElevated irreducibility

Secondary read: leaning toward Thin market.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Ṁ15.2

Category
Politics
Venue
Manifold
Open interest
—
Current probability
44.1%
7-day range
40.7% – 44.7%
Resolves
Dec 31, 2026

Depth of the order book and volume

Trust breakdown

31/100 · Low

Weakly supported. Treat this number skeptically. Main caveat: thin liquidity.

  • Liquidity anchor+31
  • Price steadiness+21
  • Thin liquidity-20
Trust score31 / 100
How these scores work →
View on Manifold

ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. ProbCast is not a betting platform, exchange, or broker and does not provide buy or sell recommendations. Intended for users 18+; availability of prediction-market activity varies by jurisdiction. Venue data is aggregated from third parties and may be delayed or inaccurate. See our Terms of Use.

Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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