The GOP primary to determine who will replace the late Senator Lindsey Graham on the November ballot is likely to proceed to a runoff. Despite former President Donald Trump’s endorsement and widespread support among the base, it appears that no clear winner will emerge from Tuesday’s special primary.

According to sources, Representative Ralph Norman and Senator Darline Graham are expected to proceed to the runoff. Trump has publicly backed Darline Graham, who is the sister of the deceased senator, for a full six-year term in the Senate.

This development comes just days after the unexpected passing of Lindsey Graham, prompting swift political movements. The involvement of high-profile figures and endorsements underscores the significance of this election for the Republican Party.

Sources from USA Today Network and Getty Images have contributed to this report as of August 9, 2026.