South Carolina Republicans have pushed the contest to replace the late Sen. Lindsey Graham into an August 25 runoff, turning a race shaped by presidential endorsement and family legacy into a test of which version of conservatism can prevail.

Sen. Darline Graham, appointed to complete her brother’s term, finished ahead of Rep. Ralph Norman but failed to reach the majority required for victory. The winner will face Democrat Annie Andrews in November, though the heavily Republican state makes the runoff the decisive contest. ¹

Graham’s campaign has centered on President Donald Trump’s endorsement, her connection to Lindsey Graham and a claim that government experience—not years in elected office—qualifies her for a full term. “I ran a state agency. I turned it from a struggling agency into a national model,” she said after voting, also pointing to her role in a Russia sanctions bill and the confirmation of Todd Blanche as attorney general. ¹

Norman offers a more conventionally ideological Republican alternative. A Freedom Caucus leader with a statewide political network, he has emphasized Trump-aligned proposals such as requiring proof of citizenship for voter registration and withholding housing funds from cities that do not cooperate with immigration authorities. His advance, despite Trump’s backing of Graham, reinforces the limits of presidential endorsements in crowded Republican primaries. JD Vance (JDVance)⁴

The campaign also exposed competing definitions of conservative credibility. Former Gov. Mark Sanford framed his candidacy around debt and spending, saying the country was at “a financial tipping point,” while Russell Fry attacked Graham over her record at the Commission for the Blind and her lack of elected experience. Graham rejected the criticism, saying her work helped people live independently and saved taxpayer money. ^{1 3}

The race remains tied to mourning and succession. Vice President JD Vance described Lindsey Graham’s rise as “a fundamentally American one,” a tribute that reflects the emotional backdrop but does not resolve the central question: whether South Carolina Republicans want continuity through his sister or a more explicitly movement-driven successor. ⁴