Democrat Annie Andrews secured a projected victory in South Carolina’s U.S. Senate election on November 3, 2026, driving trader consensus to near-certainty on her outcome. The race shifted after incumbent Lindsey Graham’s sudden death in July, when Governor Henry McMaster appointed his sister, Darline Graham Nordone, to complete the term; Nordone then won the Republican nomination but entered the general election with limited prior political experience. Andrews, a pediatrician, capitalized on strong fundraising, healthcare-focused messaging, and voter concerns over the appointee’s qualifications amid broader Democratic gains. With vote counts showing Andrews ahead by roughly three to four points and major networks calling the race, the market reflects confirmed tallies rather than forecasts. Late certification or narrow-margin audits represent the primary remaining variables.