Early Details On Lindsey Graham’s Cause Of Death Revealed

Early details have emerged on the cause of death for the late Senator Lindsey Graham, who passed away late Saturday night after a “brief and sudden illness” at the age of 71.

A preliminary report from the Washington, D.C., medical examiner’s office listed the cause of death as aortic dissection due to arteriosclerotic cardiovascular disease.

Aortic dissection is a tear in the aorta, the main artery that carries blood from the heart. Arteriosclerotic cardiovascular disease involves the gradual hardening and weakening of the arteries.

The medical examiner’s office stated that the official death certificate remains pending completion of toxicological and microscopic testing, after which the cause and manner of death will be updated and classified, according to a report from the New York Times.

Graham had returned earlier on Saturday from a trip to Ukraine, where he met with President Volodymyr Zelensky and toured a Ukrainian arms facility. He spoke by phone with President Donald Trump that evening, and according to the president, discussed ongoing efforts to pass the SAVE America Act election integrity bill.

While speaking with Meet The Press — on which Graham was scheduled to appear on Sunday morning — Trump noted that Graham sounded tired, but otherwise in good health and spirits.

Emergency medical services responded to Graham’s Capitol Hill townhouse in Washington, D.C., after a 911 call placed around 8:30 p.m. The call reported severe chest pains and requested immediate medical assistance.

The caller, traveling from Baltimore and en route to the residence, believed the front door was unlocked, though responders found it dead-bolted upon arrival, which led to a brief delay in entry.

Approximately 25 minutes later, dispatch audio indicated emergency personnel were on scene for a cardiac arrest with CPR in progress. Graham was stabilized at the scene and transported to George Washington University Hospital, where he was pronounced dead later that night.

In response to the longtime senator’s death, President Trump ordered all American flags throughout the United States to be flown at half-staff until Saturday evening at 6 p.m.

.@POTUS on the passing of Sen. Lindsey Graham: "He's a tough one to lose. He was great — he was unique in every way… He was like a member of the family to me. It's very tough." pic.twitter.com/1ql4d8KD5j

— Rapid Response 47 (@RapidResponse47) July 12, 2026

Prior to entering politics, Graham served on active duty in the U.S. Air Force from 1982 to 1989 as a member of the Judge Advocate General’s Corps, where he worked as a defense attorney and chief prosecutor in Europe. He later served in the South Carolina Air National Guard and U.S. Air Force Reserve before retiring as a colonel in 2015.

Graham’s elected political career began in the South Carolina House of Representatives, where he served from 1992 to 1994. He was elected to the U.S. House of Representatives in 1994 as the first Republican from South Carolina’s 3rd congressional district since 1877 and served until 2003.

In 2002, he was elected to the U.S. Senate and reelected in 2008, 2014, and 2020. He had won the Republican primary for a fifth term in June of this year.

During more than three decades in Congress, Graham served on the Senate Judiciary Committee (chair from 2019 to 2021), the Senate Budget Committee (chair at the time of his death), the Senate Appropriations Committee, and the Senate Committee on Environment and Public Works. He previously served as one of the House managers in the 1998 impeachment proceedings against President Bill Clinton.

Graham was known for his emphasis on national security and foreign policy. He supported a robust U.S. military role abroad, strong alliances including NATO, and consistent aid to Ukraine and Israel.

He made multiple visits to Ukraine after Russia’s 2022 invasion of that country and frequently collaborated with members of both parties on defense, national security, and other legislation.

Details on the longtime senator’s memorial services are not available as of this report.

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