The South Carolina Republican Senate primary runoff was held on August 25, with Darline Graham defeating Rep. Ralph Norman 52% to 48% to secure the nomination. Graham, the sister of the late Senator Lindsey Graham, had previously received President Trump's endorsement and nearly $1 million in outside support. She will face Democrat Annie Andrews in November for a full six-year term in the safely Republican seat.
- Darline Graham defeated Rep. Ralph Norman 52% to 48% in the August 25 Republican Senate primary runoff.
- Graham faced criticism during the campaign for admitting she was uninformed on national security issues.
- She secured President Trump's endorsement and nearly $1 million in support from MAGA Inc.
- She will face Democrat Annie Andrews in the November general election for a full six-year term.