Election live updates: Sen. Darline Graham wins South Carolina GOP primary runoff

What to know today SOUTH CAROLINA SENATE: Appointed Sen. Darline Graham defeated Rep. Ralph Norman in South Carolina’s Republican Senate primary runoff, NBC News projects, a victory for President Donald Trump, who recruited, endorsed and campaigned for her following her brother Lindsey Graham’s death six weeks ago. DAN SULLIVAN ADVANCES: In Alaska’s Senate race, former teacher Dan J. Sullivan will join Republican Sen. Dan Sullivan and Democratic challenger Mary Peltola in the general election, where a ranked-choice system could blunt the effect of any continued voter confusion over the same-named candidates. OKLAHOMA GOVERNOR: Former state Sen. Mike Mazzei has secured the Republican nomination for governor in Oklahoma in a narrow victory for the Trump-preferred candidate against state Attorney General Gentner Drummond.

Get live updates and the latest news on the 2026 election and the Trump administration as Trump-backed Sen. Darline Graham wins South Carolina’s GOP primary runoff.