A sudden vacancy and a compressed campaign define South Carolina's 2026 Senate race
In short: When incumbent Senator Lindsey Graham died suddenly in July 2026, South Carolina was thrust into an unprecedented political scramble. His sister, Darline Graham, was appointed to fill the seat and subsequently won a hard-fought Republican primary runoff, setting the stage for a November general election against Democratic nominee Annie Andrews.
The 2026 election cycle in South Carolina took a dramatic turn following the death of four-term incumbent Lindsey Graham on July 11, 2026, due to cardiac arrest. Governor Henry McMaster appointed Darline Graham, the senator's sister and former commissioner for the South Carolina Commission for the Blind, to serve the remainder of the term. Sworn in on July 14, she became the first woman to represent the state in the U.S. Senate. Shortly thereafter, she announced her candidacy for a full term, backed by the endorsement of President Donald Trump.
The Republican nomination process was uniquely volatile. Because the vacancy occurred after the June 9 primary, the state held a special primary on August 11. The campaign was exceptionally brief, with a filing period lasting only one week in late July. Legal disputes emerged over candidate eligibility, specifically regarding a new party rule requiring participation in previous Republican primaries. A Richland County judge eventually ordered that candidate Danny Ford II be placed on the ballot despite initial disqualification. No candidate secured a majority in the special primary, leading to an August 25 runoff where Darline Graham defeated Congressman Ralph Norman with 52.5% of the vote.
The general election on November 3, 2026, pits Darline Graham against Democratic pediatrician Annie Andrews. South Carolina is widely viewed as a Republican stronghold; the state has not elected a Democrat to the U.S. Senate since 1998. Republicans currently hold supermajorities in the state legislature and control nearly every statewide office. While the winner of this race is expected to be the first woman ever elected to the Senate from South Carolina, the electoral environment remains heavily tilted toward the Republican party, which saw Donald Trump’s margin of victory in the state grow to 18 percentage points in the 2024 presidential election.
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- Summary by Intellect · source: 2026 United States Senate election in South Carolina
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