Darline Graham secured a commanding position in Richland County during South Carolina’s August 25 Republican Senate special primary runoff due to her strong performance across the Midlands in both the initial August 11 primary and the runoff. As the sister of the late Senator Lindsey Graham, she benefited from immediate name recognition after her appointment to the seat, combined with President Trump’s active endorsement, a Myrtle Beach rally, and over $800,000 in super PAC spending on texts and calls that boosted turnout. Ralph Norman, a five-term congressman, performed best in the Upstate but trailed statewide by roughly five points, limiting his reach in central counties like Richland. Late-breaking challenges such as questions over Graham’s national security experience did not shift county-level results. Scenarios that could still alter the outcome remain narrow, primarily involving unresolved vote tabulation or official certification disputes.