Updated July 12, 2026 at 7:56 AM CDT
Sen. Lindsey Graham, R- S.C., died late Saturday night following a "brief and sudden illness," according to a statement released by his office. He was 71.
His office did not immediately reply to a request for information on his cause of death.
Graham served in the House of Representatives from 1995 to 2003, when he succeeded Strom Thurmond in the Senate. He was reelected three times and recently won a primary election as he sought a fifth term.
Graham served in the U.S. military for more than three decades. After graduating from the University of South Carolina's law school, he served as an active duty Air Force lawyer for six years. Graham later served in both the South Carolina Air National Guard and Air Force Reserves and retired from the military in 2015 at the rank of colonel.
Senate Majority Leader John Thune called Graham "a strong advocate for the United States and a strong ally to freedom-loving countries across the globe," in a statement posted on X. "Lindsey fought passionately for the Palmetto State. He was a trusted adviser and colleague to me and many others, and numerous presidents and heads of state have relied on his counsel."
President Trump shared a remembrance on his Truth Social platform: "Senator Lindsey Graham, one of the greatest people and Senators I have ever known, is dead! He was always working, and was a true American Patriot."
His death comes at a difficult moment for the Senate Republican conference, which has struggled with a narrow majority that includes a handful of outgoing members who occasionally break ranks to oppose the president.
Sen. Mitch McConnell, a Kentucky Republican, has missed votes during an apparently ongoing hospitalization for an undisclosed health issue, further narrowing the margins for Thune to pass legislation and confirm executive and judicial branch nominees.
Legislative legacy
During his near-quarter century in the Senate, Graham served as chair of two key committees and was instrumental in enacting Trump's policy and staffing priorities.
As chair of the Judiciary Committee during much of Trump's first term, Graham oversaw the confirmation of Justice Amy Coney Barrett to the Supreme Court and of scores of federal judges.
Last year as head of the budget committee, Graham shepherded the president's landmark tax package, the One Big Beautiful Bill Act, to passage despite unanimous Democratic opposition and thorny negotiations with his Republican colleagues.
An adaptable and sometimes controversial deal-maker, Graham was the last surviving member of an influential group of Senate defense hawks known as "the three amigos," alongside the late Sens. John McCain, R-Ariz., and Joe Lieberman, a Connecticut Democrat-turned-Independent. The group was a fixture of congressional delegations to conflict zones.
Graham was among the most vocal supporters of the U.S.-Israeli military campaign against Iran.
"Israel has lost one of its greatest friends. America has lost a great patriot. I have lost a beloved friend," Israeli Prime Minister Benjamin Netanyahu said in a statement posted to X. "Our hearts are with Lindsey's family and with the American people at this difficult time."
Graham also sought the Republican presidential nomination in 2016 and staked a lane as a fierce critic of Donald Trump. In a 2015 CNN interview, Graham referred to then-candidate Trump as "a race-baiting, xenophobic religious bigot" who doesn't represent the views of the Republican Party.
In the decade since Trump's victory, though, Graham has become one of the president's staunchest advocates. A longtime friend and ally of McCain, Graham attributed his transformation to a sense of patriotic duty.
"I am not going to give up on the idea of working with this president. The best way I can honor John McCain is help my country," he told CBS News in 2018.
A frequent Trump golf companion, Graham hewed closely to the president in his recent Senate primary election — his campaign website touts the president's "Complete and Total Endorsement."
Graham was born in Central, S.C., in 1955 and lived with his family in a single room behind their liquor store, restaurant and pool hall, according to his campaign biography. His parents died while Graham was still in school. After their death, Graham became the primary caretaker of his younger sister, Darline, whom he eventually legally adopted.
In a statement on the social media platform X, South Carolina Gov. Henry McMaster described Graham as "irreplaceable," adding, "We shall not see his likes again."
McMaster, a Republican, will appoint a successor to serve the remainder of Graham's term. A replacement Republican nominee for this fall's general election race will be determined by a special election in August.
NPR's Brian Mann and Claudia Grisales contributed to this report.
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