Darline Graham was sworn in on July 14, 2026 [3], to serve as the temporary replacement for the late Senator Lindsey Graham in the U.S. Senate.

The appointment follows the death of Senator Graham on July 11, 2026 [1]. The move ensures that South Carolina maintains its full representation in the federal legislature during a critical period of governance.

Governor Henry McMaster named the replacement on Monday afternoon, July 14, 2026 [2]. The selection came after Donald Trump publicly endorsed Darline Graham to fill the vacancy created by her brother's death.

Darline Graham took the oath of office on July 14, 2026 [3], officially assuming the responsibilities of the seat. This appointment allows the state to avoid a prolonged vacancy while the government determines the timeline for a permanent successor.

The process moved quickly following the senator's death on July 11, 2026 [1]. The transition from the announcement of the appointment to the swearing-in ceremony occurred within a single day on July 14, 2026 [2], [3].

This appointment marks a rare instance of a family member being tapped to fill a vacant Senate seat so shortly after a relative's death. The decision to appoint Darline Graham reflects a combination of gubernatorial authority and high-profile political endorsement.

Darline Graham was sworn in on July 14, 2026

The rapid appointment of Darline Graham prevents a power vacuum in South Carolina's representation. By selecting a candidate endorsed by Donald Trump, Governor Henry McMaster maintains political alignment within the state's GOP leadership while honoring the legacy of the late Senator through a family appointment.