ManifoldPlay moneyPoliticsDevelopingUpdated 9m ago

Will Darline Graham run for and win Lindsey Graham's senate seat in the 2026 Senate Election?

As of Oct 11, 2026, 4:25 PM ET, Manifold priced this market at 84.0% (up from 74.6% 24 hours earlier). It had 62.3 mana traded in the past 24 hours and 100 mana of pool liquidity. probcast.co rates the support behind this price as moderate.

Market probability
84.0%
+9.4 percentage points
over 24 hours74.6% → 84.0%

Play-money market (mana, not dollars) — thin market where small orders can move the price — today's move came from a small group of accounts.

Price historyManifold

Source: Manifold price history

How credible was the move?

Methodology →

Move validity

Moderate

Consensus stability

Stable

Contract clarity

High

Can you trust this price?

Two different questions: how hard the price is to move, and whose trading set it.

Market capacity

How hard is it to move this price?

Thin

Pool liquidity

100 mana

Bid-ask spread

n/a

automated market maker

24h volume

62.3 mana

Total volume

5.5K mana

Play money: depth is in mana, so it says nothing about real-money conviction.

Who's trading

Whose opinion is this price?

A few accounts
38%of the traded money came from the single largest account

Accounts

25

Trades

120

over 81 days

Largest order

1K mana

3.6K mana traded across these 120 trades (last 81 days).

A small group of accounts did most of the trading — neither one whale nor a broad crowd.

Recent trade activity$3.6K traded

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

What this market actually measures

Resolution criteria This market will resolve to YES if Darline Graham (also known as Darline Graham Nordone) officially runs in the 2026 United States Senate election in South Carolina and wins the general election scheduled for November 3, 2026. This market will resolve to NO if any of the following occur: She does not officially file to run, or withdraws her candidacy before the elections.

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

Resolution criteria This market will resolve to YES if Darline Graham (also known as Darline Graham Nordone) officially runs in the 2026 United States Senate election in South Carolina and wins the general election scheduled for November 3, 2026. This market will resolve to NO if any of the following occur: She does not officially file to run, or withdraws her candidacy before the elections. She runs but loses the special Republican primary scheduled for August 11, 2026. She runs but loses the general election on November 3, 2026. The primary source of truth for resolution will be the official election results published by the South Carolina State Election Commission or, in the immediate aftermath, consensus race calls from major news organizations (e.g., AP News, Decision Desk HQ). Background Following the death of long-serving U.S. Senator Lindsey Graham on July 11, 2026, South Carolina Governor Henry McMaster appointed Graham's sister, Darline Graham, to fill the vacancy for the remainder of the term. Because Lindsey Graham had already won the Republican primary in June 2026 before his passing, South Carolina will hold a special Republican primary on August 11, 2026, to choose a new nominee. On July 20, 2026, Darline Graham announced she is officially running to seek a full term for the seat. The winner of the Republican primary will face Democratic pediatrician Annie Andrews in the November general election.

Why the odds moved

The probability rose 9.4 percentage points over the last 24 hours (74.6% → 84.0%).

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 scheduled event takes placeNovember 3, 2026 at 6:59 PM ET

    The contract resolves on the event's outcome.

Derived from the contract's own mechanics as of Oct 11, 4:34 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 ±24 pts.

Thin marketLegacy movement classifier: watch

What's happening

medium classifier confidence
Thin market

Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.

  • Thin book and/or wide spread.

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
8Low
Where the price path tends to go next991 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 ~3h
PredictabilityStable

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.

Market data

24h volume

62.3 mana

Liquidity

100 mana

Total volume

5.5K mana

Category
Politics
Venue
Manifold
Open interest
—
Current probability
84.0%
7-day range
74.6% – 84.0%
Resolves
Nov 3, 2026
Change (pts)1H0.06H0.024H+9.47D+9.4