South Carolina’s Senate race has become one of the year’s most unusual contests after Republican Lindsey Graham, who won his party’s June 9 primary, died on July 11, triggering a special Republican primary and runoff that installed Darline Graham as his replacement on the November 3 ballot against Democratic pediatrician Annie Andrews. A Trafalgar Group poll released October 18 showed Darline Graham leading Andrews 49% to 46%, a margin tight enough that Sabato’s Crystal Ball has moved the race from Safe Republican to Likely Republican, an unusual rating shift for a seat the GOP has held continuously since 2003.
How Darline Graham Got on the Ballot
After Lindsey Graham’s death left the Republican nomination vacant just months before the general election, the state party held a special primary process culminating in an August 25 runoff in which Darline Graham defeated sitting congressman Ralph Norman with 52.5% of the vote, a result that surprised some observers given Norman’s higher national profile and longer legislative record. Her victory over a sitting member of Congress in a compressed timeline underscored both the chaos the party faced in replacing its longtime senator and Graham’s ability to consolidate support quickly once she entered the race.
Andrews’s Pitch as a Pediatrician-Turned-Candidate
Democratic nominee Annie Andrews, a pediatrician, has built her campaign around healthcare access and affordability messaging aimed at persuadable voters in a state Democrats have not carried in a Senate race since 1998. Her medical background gives her a credential-based contrast with a Republican field reshaped by a sudden death and rushed succession process, though South Carolina’s deep Republican lean in federal races remains the central obstacle to any Democratic path to victory.
Why the Race Tightened at All
Polling showing a single-digit margin in a state Republicans have dominated for decades reflects both the unusual circumstances of Graham’s installation as a first-time statewide candidate and broader national headwinds Republicans have faced in several 2026 Senate contests. Analysts caution that tightening polls in deep-red states don’t necessarily translate into competitive outcomes once turnout patterns hold, but the movement has been enough to draw national attention and campaign resources to a race most forecasters had written off as uncompetitive at the start of the cycle.
A Historic First Either Way
Regardless of the outcome, South Carolina will send its first woman to the US Senate, a milestone that has added a distinct dimension to coverage of the race beyond the usual partisan contest. Both campaigns have leaned into different aspects of that history, with Graham’s campaign emphasizing continuity with the Republican legacy her predecessor built over more than two decades in Washington, and Andrews’s campaign framing her potential win as a broader change moment for the state’s political representation.
What the Numbers Say
Beyond the Trafalgar poll, the Pollsmax polling average shows Graham ahead by a narrower 1.7 points, while prediction market Kalshi prices her chances at roughly 84% to win, a gap between polling margin and implied probability that reflects how markets weigh the state’s underlying partisan lean more heavily than any single poll. The discrepancy is a reminder that South Carolina’s fundamentals still favor Republicans even where individual surveys show a closer race than the state’s recent electoral history would suggest.
What’s Next
With less than two weeks until the November 3 election, both campaigns are expected to intensify turnout operations, with Andrews needing to drive Democratic and independent turnout well above historical norms to overcome the state’s baseline Republican advantage, while Graham’s campaign works to consolidate a party base still adjusting to a candidate who was not on anyone’s radar before this summer. National Republican groups are watching closely to see whether any further erosion in a seat this safe signals broader trouble heading into the final stretch of the midterm cycle.
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