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South Carolina Senate race

Updated October 8, 2026 · 26 days until the November 3 election

Annie Andrews (D) and Darline Graham (R) are running for the U.S. Senate seat in South Carolina. Across 5 polls, the Frothier average has Annie Andrews at 43.9% and Darline Graham at 45.2%, which is Graham +1.3. After blending the polls with how South Carolina usually votes, the estimate is Graham +3.4. That gives Darline Graham a 71% chance of winning, and the race is rated Lean R. The seat is currently held by Republicans.

Rating
Lean R
Set by the win estimate
Chance of winning
71%
Darline Graham (R)
Polling average
Graham +1.3
5 polls, newest Sep 29
Frothier estimate
Graham +3.4
Give or take 6.0 points

Where the race stands

Annie AndrewsDemocrat
43.9%
Darline GrahamRepublican
45.2%
Chance of winning
Andrews 29%Graham 71%

How the polls have moved

The polling average over the last four months. Above the middle line Andrews leads; below it Graham leads.

D+11EvenR+11Aug 25Oct 8

Recent polls

Newest first. Polls paid for by a party or a campaign are tagged and count for half in the average.

PollsterEndedSampleAndrews (D)Graham (R)Margin
InsiderAdvantage Sep 291,200 LV 45.046.0Graham +1.0
Trafalgar GroupR poll Sep 251,087 LV 42.343.4Graham +1.1
InsiderAdvantage Sep 91,200 LV 43.245.1Graham +1.9
Abacus Data Aug 28306 LV 38.051.0Graham +13.0
Impact ResearchD poll Aug 24700 LV 41.041.0Even

How this estimate is made

Every general-election poll goes into one weighted average: newer, larger and likely-voter polls count for more, and no single pollster can flood it. The average is then blended with how the state voted for president in 2024 and today's national generic ballot. Races with many recent polls lean on the polls. A win estimate is a probability, not a call: a candidate with a 70 percent chance loses three times in ten. Full method and sources.

Poll data from The New York Times poll database, CC BY 4.0, via PollResults.org. Averages, ratings and projections are Frothier calculations.

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