The Republican race to succeed the late Senator Lindsey Graham of South Carolina has officially begun. On July 21, 2026, Senator Darline Graham announced her candidacy for a full six-year term in the Senate during an interview on Fox News. She was appointed last week to fill her brother's remaining term and received an endorsement from former President Donald Trump after meeting with him at the White House. Despite Trump's endorsement, other Republican candidates are entering the race, indicating a competitive primary.
Republican Rep. Ralph Norman and Rep. Russell Fry have both announced their intentions to run. Businessman Mark Lynch, who previously lost a GOP primary, is also seeking the nomination. Lt. Gov. Pamela Evette has expressed interest in running, emphasizing the need for a strong conservative candidate.
Political analysts note that while Trump's endorsement is significant, it does not guarantee victory in the primary. South Carolina's political landscape is described as unpredictable, with candidates highlighting their support for Trump while also seeking to present themselves as independent choices for voters.
The filing period for candidates ends on July 28, 2026, with the primary election scheduled for August 11. If no candidate receives more than 50% of the vote, a runoff will occur on August 25.