Lindsey Graham's cause of death revealed as the FBI swarms his home and toxicology is pending

Lindsey Graham's preliminary cause of death has been released, and it hasn't settled a thing. The DC Medical Examiner found the 71 year old US senator died of an aortic dissection brought on by arteriosclerotic cardiovascular disease, a tear in the body's main artery driven by hardened arteries, according to a statement issued by his office just before 5pm on Sunday, Washington time, early Monday morning in Melbourne.

It's the next line of the statement that's doing all the work.

"The death certificate will be PENDING until all the toxicological and microscopic testing are finalized, and at that point the death certificate will be updated to reflect the cause of death and appropriately classify the manner of death."

Until those toxicology results come back, the manner of Graham's death, the box that gets ticked natural or otherwise, officially remains open. That single fact has turbocharged a weekend of speculation that began the moment his office announced he'd died.

Graham was the senior senator from South Carolina and one of the most influential Republicans in Washington for a quarter of a century. A former Air Force lawyer, he'd held the seat since 2002, chaired the Senate Judiciary Committee during Trump's first term and helped put a generation of conservative judges on the bench, including his famous 2018 defence of Brett Kavanaugh that many credit with saving the Supreme Court nomination.

To Trump he was more than an ally. The two started the 2016 race as rivals and ended up as golfing mates, with Graham becoming the President's closest friend in the Senate and his most trusted voice on foreign policy, from arming Ukraine to backing Israel and squeezing Iran. Four weeks before his death, Graham wished Trump a happy 80th birthday on X and told him he was “on the verge of fundamentally changing the Mideast in a historic way.”

The 911 call came from his Capitol Hill home at 8.30pm

A 911 call for cardiac arrest was placed from Graham's Capitol Hill residence about 8.30pm on Saturday night, Washington time, according to police audio. Emergency crews took him to George Washington University Hospital, and his office announced early on Sunday that he'd "passed away from a brief and sudden illness" at 71.

He was booked to appear on NBC's Meet the Press the very next morning.

Kash Patel sent in the FBI within hours

By Sunday, FBI agents had been spotted at Graham's Washington residence, and the bureau's director Kash Patel confirmed on X that his agency was involved.

"The FBI is assisting local authorities and has made every necessary resource available."

Patel called Graham "a devoted public servant, a fierce defender of our nation, and a true patriot who dedicated his life to the people of South Carolina and the United States."

Federal law enforcement sources told Fox News there was no indication of foul play as of Sunday and that the bureau's involvement was part of the normal process. It hasn't stopped anyone asking why the FBI needs to be at the house at all.

In Kyiv with Zelensky on Friday, dead in Washington by Sunday

The timing is what's feeding the theories. Graham spent the July 4 recess in Ukraine, met President Volodymyr Zelensky in Kyiv on Friday and took questions from reporters beside a display of destroyed Russian vehicles. The Daily Mail reported he also visited a drone facility that was later destroyed by the Russians. By the Daily Beast's count, he was standing next to Russia's greatest enemy about 36 hours before he died.

The trip had a purpose. Standing beside Zelensky on Friday, Graham announced he'd struck a deal with the White House on a Russia sanctions bill that would let Trump punish any country still buying Russian energy, and he toured a Ukrainian drone plant as the two governments talked up jointly building weapons.

Graham was one of Washington's loudest voices for arming Ukraine and for confronting Iran, which put him high on both regimes' lists of least favourite Americans.

Moscow had wanted Graham gone for years. Russia issued an arrest warrant for him in 2023 after he was filmed telling Zelensky that US military aid was "the best money we've ever spent," which the Kremlin cast as praise for killing Russians. Deputy Security Council chairman Dmitry Medvedev branded him an "old fool," and Graham said he'd wear the warrant as a badge of honour.

Iran's state TV cheered and Putin's ideologue wanted Graham flattened

Iranian state television celebrated on air. "I congratulate the great Iranian nation that Lindsey Graham, the American warmongering senator and enemy of Iran, has gone to hell," one anchor told viewers, and footage of the broadcast spread quickly on X. A presenter on a second regime affiliated network said he was so pleased he read the news out twice. Iran makes no secret of wanting its enemies in Washington dead, and the video of the grinning anchor delivering the news left little doubt Graham sat high on that list.

Conservative journalist Laura Loomer called for an investigation, pointing out that Alexander Dugin, the ultranationalist ideologue often described as Putin's brain, had called for Graham to be "flattened" four months earlier. A Russian opposition figure went further, claiming without evidence that Kremlin intelligence assassinated the senator. No official in Washington has pointed a finger at Moscow or Tehran.

Megan Mobbs: cardiac arrest tells us how, not why

Calls for a full forensic workup aren't only coming from anonymous accounts. Megan Mobbs, director of the Center for American Safety and Security at the conservative Independent Women's Forum, put the case on X.

"Cardiac arrest tells us how his life ended. It does not tell us why his heart stopped."

Mobbs said that "given the threat environment, the identities of America's adversaries, and Senator Graham's prominent role confronting them, the American people deserve certainty." That means, she wrote, "a complete forensic autopsy, preservation of all relevant biological specimens, comprehensive toxicology and histology, and consultation with federal law enforcement and counterintelligence authorities."

Commentator Matt Van Swol shared footage of Graham in Ukraine looking well just days before. "I'm sorry, but Lindsey Graham dying out of the blue like this doesn't make any sense at all," he wrote. "We have him on camera yesterday looking perfectly healthy. None of this is making any sense."

Dustin Grage: blood pressure since his 40s and a father dead at 69

Not everyone on the right is buying the intrigue. Townhall columnist Dustin Grage said he'd been told by a South Carolina source that Graham had dealt with blood pressure issues since his 40s, and that the senator's father died of cardiac arrest at 69.

"I know the conspiracy theories won't stop, but sometimes life just happens. Not everything is a conspiracy," Grage wrote. Talk radio host Dana Loesch agreed, noting Graham's death looked "sudden, but cardiac issues usually are."

An aortic dissection fits that picture. It's a tear in the inner wall of the aorta that can kill within minutes, and long term high blood pressure is one of its biggest risk factors.

Trump: one of the greatest people and Senators I have ever known

Trump posted the tribute on Truth Social shortly after the announcement and said Graham seemed fine when they spoke on Saturday evening, "Other than being tired." The White House lowered its flags to half mast.

Vice President JD Vance wrote that Graham "fought like hell for the things he believed in, and he was just as willing to go to bat for you when it counted." Israeli Prime Minister Benjamin Netanyahu said Israel had "lost one of its greatest friends" and America "a great patriot."

South Carolina Governor Henry McMaster will appoint an interim senator, and the seat goes to voters at the 3 November midterm elections, when Graham's term was up for re election anyway.

The toxicological and microscopic testing his office flagged can take weeks. Until it lands, the death certificate stays pending, and so do the questions.