Darline Graham secured the Republican nomination after her appointment by Gov. Henry McMaster to complete her late brother Lindsey Graham’s term and her August runoff victory over Rep. Ralph Norman, backed by President Trump. South Carolina’s strong Republican tilt, where no Democrat has won a Senate seat since 1998, underpins trader consensus favoring her reelection bid on November 3 despite a compressed campaign. Democratic nominee Annie Andrews, a pediatrician who won her primary, has narrowed the gap in recent polling through heavy ad spending and focus on healthcare costs and the economy, but faces structural headwinds in a state Trump carried by double digits in prior cycles. A recent debate and external spending by GOP-aligned groups have reinforced Graham’s position as the frontrunner.