Lindsey Graham's sister sworn in as US Senator

South Carolina’s senior United States senator, Lindsey Graham, formally vacated his seat on Tuesday, prompting the state’s governor to appoint his sister, Dr. Elizabeth “Liz” Graham, as his successor. The swearing‑in ceremony took place at the South Carolina State House, where the new senator took the oath administered by Chief Justice John H. Waller. Dr. Graham, a former university professor and longtime public‑service advocate, will serve the remainder of the term, which ends in 2026.

Governor Henry McMaster cited state law that allows a governor to fill a Senate vacancy with a qualified individual from the same political party, noting that Dr. Graham’s extensive experience in education and health policy aligns with the priorities of the state’s Republican delegation. The appointment follows Senator Graham’s decision to resign after being confirmed as the U.S. ambassador to the United Nations, a role he will assume later this month. The Senate’s Committee on Ethics will review the appointment to ensure compliance with federal regulations governing succession.

Dr. Graham’s tenure begins amid heightened legislative activity on infrastructure, immigration, and defense spending, with senior Senate leaders indicating she will be integrated into relevant committees. While she has pledged to uphold her brother’s legislative agenda, she also emphasized a focus on constituent services and bipartisan cooperation. The appointment marks the first time a sibling has directly succeeded a sitting senator from South Carolina, setting a notable precedent for future vacancy fillings.