Politics Polymarket August 26, 2026
Darline Graham Wins South Carolina Senate Runoff
South Carolina Special Senate Republican Primary: Runoff Margin of Victory
Polymarket prices this Graham Nordone <5% at 96%. The reporting broadly agrees.
Darline Graham, backed by former President Trump, has won the Republican special primary runoff for the U.S. Senate in South Carolina, according to projections from multiple news outlets. Graham defeated Representative Ralph Norman in the contest to fill the seat previously held by her late brother, Senator Lindsey Graham. Her victory sets the stage for the general election in November. The margin of victory for Graham over Norman was anticipated to be less than 5%, a sentiment reflected in predictions, with odds for a margin under this threshold currently at 96%, indicating strong confidence in a close but decisive win.
Background
The special primary runoff was held to determine the Republican candidate for the U.S. Senate seat, which became vacant following the passing of Senator Lindsey Graham. Darline Graham, the late senator's sister, quickly emerged as a leading contender, securing the endorsement of former President Donald Trump. Her opponent, Representative Ralph Norman, also garnered significant support, leading to a closely watched primary. This runoff was necessary after no candidate achieved more than 50% of the vote in the initial primary election. The specific outcome being decided by this market is whether Graham Nordone's margin of victory in this runoff will be less than 5%.
The precedent
- Special elections for U.S. Senate seats are held when a vacancy occurs before the end of a term, with the governor typically appointing an interim senator until a special election can be held.
- In U.S. primary elections, if no candidate receives a majority of the votes, a runoff election between the top two vote-getters is often required, as was the case here.
Context compiled by Crowdtells from the public record — verify before relying on it.
What the coverage agrees on
- Darline Graham won the South Carolina Republican Senate special primary runoff.
- Graham defeated Representative Ralph Norman.
- She was endorsed by former President Donald Trump.
- The victory means she will replace her late brother, Senator Lindsey Graham, on the November ballot.
How outlets frame it
- CBS News: Emphasizes the projected win and features Jessi Mitchell anchoring a special report on the outcome.
- NBC News: Highlights Trump's backing of Graham and her victory over Norman to secure the spot on the November ballot.
What to watch
With Darline Graham now officially the Republican nominee, attention shifts to the general election scheduled for November. Her campaign will focus on uniting the party and campaigning against her Democratic opponent. The resolution of this market, based on the official margin of victory, will be determined on August 25, 2026, following the certification of the election results.
The numbers behind this
Polymarket prices this Graham Nordone <5% at 96%.
24h +57.0 pts
$217K traded · $215K in the last day · $278K resting liquidity · $76.6K open interest
Resolves on: The special primary runoff election for the US Senate election in South Carolina is scheduled to be held on August 25, 2026. This market will resolve according to the margin of victory between the top two candidates in the runoff of the South Carolina Senate Special Republican Primary. The “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. If the reported value falls exactly…
Pricing Polymarket 96%
Sources
- Trump-Backed Darline Graham Wins South Carolina Republican Senate Primary Runoff outlookindia.com
- Live Results: South Carolina's special Senate GOP primary runoff pbs.org
- Graham wins GOP nod in South Carolina Senate primary runoff for late brother’s seat thehill.com
- South Carolina Senate Runoff Odds: Graham Vs Norman oddsshopper.com
- Sen. Darline Graham wins GOP nomination for U.S. Senate in South Carolina npr.org
Frequently asked questions
South Carolina Special Senate Republican Primary: Runoff Margin of Victory
Polymarket prices this Graham Nordone <5% at 96%. The reporting broadly agrees.
What do the sources agree on?
Darline Graham won the South Carolina Republican Senate special primary runoff. Graham defeated Representative Ralph Norman. She was endorsed by former President Donald Trump. The victory means she will replace her late brother, Senator Lindsey Graham, on the November ballot.
When does this market resolve?
This market resolves on: The special primary runoff election for the US Senate election in South Carolina is scheduled to be held on August 25, 2026. This market will resolve according to the margin of victory between the top two candidates in the runoff of the South Carolina Senate Special Republican Primary. The “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. If the reported value falls exactly…
How are these odds set?
Prediction-market odds are prices set by people trading real money on the outcome, so the price reads as the crowd’s implied probability — not a guarantee or financial advice.
AI-written briefing grounded in 5 sources and the live market, edited by Samuel Jo. Odds are crowd probabilities, not advice — how this works.