South Carolina's 3rd congressional district maintains a strong Republican lean, reflected in its R+21 Partisan Voter Index and consistent historical results. Incumbent Sheri Biggs advanced unopposed through the Republican primary and holds the seat after winning it in 2024, while Democrat Eunice Lehmacher secured her nomination in a June primary. All major forecasters rate the race as Solid or Safe Republican ahead of the November 3 general election. Trader consensus at 96.2% for Biggs aligns with the district's partisan baseline and limited Democratic fundraising or national attention. A shift would require an unforeseen late development, such as a major scandal or turnout anomaly, to alter the outcome.