Senator Darline Graham and Representative Ralph Norman are competing in a runoff election to secure the Republican nomination for the U.S. Senate seat in South Carolina. This contest follows a primary election where neither candidate achieved the majority threshold required to avoid a secondary vote.

On August 25, 2026, voters in South Carolina returned to the polls to decide the Republican nominee for the U.S. Senate. The runoff election features incumbent Senator Darline Graham and Representative Ralph Norman, both of whom advanced from a crowded primary field earlier this month.
The outcome of this runoff will determine which candidate advances to the general election to represent the Republican party. Taxpayers are funding the administration of this secondary election, which is necessitated by the state's requirement that a candidate must secure more than 50 percent of the vote to avoid a runoff. The results will influence the legislative agenda and federal resource allocation for the state.
Senator Graham enters the runoff with the endorsement of former President Donald Trump. According to reporting by The Hill Politics, Graham held an 8 percentage point lead over Representative Norman following the initial primary results. The race is a critical test of party influence and candidate viability within the South Carolina electorate.
Supporters of Senator Graham emphasize the importance of her alignment with national party leadership and the endorsement she received from the former president. Conversely, supporters of Representative Norman argue that his legislative record in the House provides a necessary alternative for voters seeking a change in representation. Critics of the current primary process point to the additional costs and voter fatigue associated with runoff elections, while proponents argue that the system ensures the eventual nominee has a clear mandate from the majority of the party base.
As the runoff concludes, the focus shifts to the general election campaign. Citizens are encouraged to review the voting records and stated policy platforms of both candidates to understand how their potential election to the Senate would impact federal policy. The final tally will be verified by state election officials to ensure the integrity of the nomination process.
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