Sen. Lindsey Graham of South Carolina, a four-term Republican who chaired the Senate Budget Committee and became one of Washington's loudest foreign-policy hawks, died Saturday evening after what his office called "a brief and sudden illness." He was 71.

The death narrows the Senate Republican majority to 52-47 for at least several weeks, complicates a Russia sanctions bill Graham had just finished negotiating with the White House in Kyiv and removes the lead Senate advocate for President Trump's stalled voter-citizenship bill roughly four months before November's midterms.

What happened

Graham's office announced the death Sunday morning on X, saying he "passed away from a brief and sudden illness" the previous evening. Emergency personnel responded to a cardiac arrest call at Graham's Capitol Hill residence Saturday night, and CPR was in progress when paramedics arrived, according to NBC News, which cited police-scanner audio. A senior aide told the network there had been no prior indication of health problems. Graham had been scheduled to appear on NBC's "Meet the Press" Sunday morning; host Kristen Welker said it would have been his 64th appearance.

The final trip

Graham had returned this week from his tenth wartime visit to Ukraine, where he met Friday with Ukrainian President Volodymyr Zelenskyy in Kyiv and announced that Senate negotiators had reached agreement with the White House on a Russia sanctions bill Trump would support. The measure, Graham said, would give "tools to President Trump to end this war." Zelenskyy said Sunday he was "deeply saddened" and that Graham "visited Ukraine ten times during the years of Russia's full-scale invasion and was here with our people when it was most needed." NATO Secretary-General Mark Rutte and Israeli Prime Minister Benjamin Netanyahu issued similar tributes; Netanyahu said "Lindsey understood that the security of Israel and America are inseparable."

The senator

Graham was first elected to the Senate in 2002 after four terms in the U.S. House, part of the 1994 Republican wave. He grew up in Central, South Carolina, the son of parents who ran a restaurant and pool hall, and became the first in his family to attend college, earning both undergraduate and law degrees from the University of South Carolina. He served 33 years in the Air Force, retiring as a colonel in 2015 while sitting in the Senate. In Washington he formed a foreign-policy troika with the late John McCain and former Senator Joe Lieberman, dubbed the "Three Amigos" for their hawkish stances.

On the Hill

Graham's death narrows the Republican majority to 52-47 at a moment when Kentucky Republican Sen. Mitch McConnell remains on extended medical absence, hampering Trump's legislative agenda ahead of the 2026 midterms. Under South Carolina law, Gov. Henry McMaster will appoint a replacement to serve until Jan. 3, 2027, and Republicans must choose a new November nominee through a special primary required by Aug. 11, NBC News reported. Graham had won this year's Republican primary last month, according to Fox News, and was heavily favored to secure a fifth six-year term. He chaired the Budget Committee and sat on Appropriations, Judiciary, and Environment and Public Works.

Graham was also the co-sponsor and lead Senate advocate for the SAVE America Act, the voter-citizenship bill Trump this weekend cited when he refused to sign a bipartisan housing package. His death, CNBC reported, "complicates an already murky path forward for the election bill."

Trump ties

Graham's arc with Trump was jagged. In 2015 he told CNN Trump was "a race-baiting, xenophobic, religious bigot," and in May 2016 wrote on social media, "If we nominate Trump, we will get destroyed... and we will deserve it." Trump called Graham a "nut job." The two reconciled during Trump's first term and became golf partners; Graham voted against convicting Trump at his February 2021 impeachment trial and endorsed him in 2024. On Truth Social Sunday, Trump called Graham "one of the greatest people and Senators I have ever known" and "a true American Patriot." Senate Majority Leader John Thune called him "a strong advocate for the United States and a strong ally to freedom-loving countries across the globe."

Where he differed

Graham's interventionist record put him at odds with the wing of Trump's coalition that has grown warier of foreign entanglements. He voted for the 2003 Iraq invasion, opposed the 2021 withdrawal from Afghanistan and stood unqualifiedly behind Israel and Ukraine at moments when the White House did not. Trump and many of his allies, the BBC noted, "have been lukewarm in their support for Ukraine and have taken a more conciliatory tone towards Russia." The Kyiv sanctions deal Graham struck Friday still depends on a White House whose appetite for punishing Moscow has not been tested. Graham himself acknowledged the tension, telling the BBC in 2023, "There is a dark side to Donald Trump... and he was a very good president."

What's next

McMaster's office did not immediately comment on whom the governor would appoint or how Republicans would fill the November ballot. The special primary deadline is Aug. 11.