The 2026 U.S. Senate primary election in South Carolina will be held on June 9, 2026, to determine the Democratic and Republican nominees for the U.S. Senate seat currently held by incumbent Senator Lindsey Graham. Voters will select nominees who will advance to the general election in November 2026.
The 2026 U.S. Senate primary election in South Carolina will be held on June 9, 2026, to determine the Democratic and Republican nominees for the U.S. Senate seat currently held by incumbent Senator Lindsey Graham. Voters will select nominees who will advance to the general election in November 2026.
To vote in the South Carolina primary, registered voters must cast their ballot at their assigned polling place on election day, June 9, 2026, or during the early voting period from May 27 to June 7, 2026. Voters must present a valid photo ID, such as a South Carolina driver's license, state ID card, or U.S. passport. Registration must be completed by May 11, 2026, either online through the South Carolina State Election Commission website, by mail, or in person at a county voter registration office.