Senator Darline Graham (R-S.C.) is projected to win the South Carolina Republican primary runoff held on Wednesday, August 26, 2026, to replace her brother, the late Senator Lindsey Graham (R-S.C.), on the November ballot, according to Decision Desk HQ.

Lindsey Graham, 71, died unexpectedly in early July 2026 after serving in the Senate for more than two decades. He had recently won the primary before his passing.

Darline Graham's projected victory in the GOP runoff positions her as the Republican candidate for the South Carolina Senate seat in the upcoming general election.

Sources