President Donald Trump’s health is constantly a topic of debate — not least because the president himself likes to boast about how virile and energetic he still is.

But what would actually happen if Trump were to die while in office?

Here’s the answer:

Donald Trump, the oldest person ever elected U.S. president, is set to celebrate his 80th birthday in June. He insists he’s in excellent health — but questions about what would happen if a sitting president were to die in office continue to surface.

An expert has even gone so far as to speculate that the president might have just “2 to 4 months left in the land of the living.”

But as most know, it’s virtually impossible to predict something like this. On the other side of the ring, the president frequently boasts about his physical condition, even claiming that doctors are impressed by his vitality.

Still, sharp-eyed viewers have occasionally spotted unexplained bruises on his hands, sparking fresh speculation about his health.

It’s uncommon for a U.S. president to die while in office, but it has happened a few times. Clear procedures exist to ensure a smooth transition when it does.

What happens if a president dies in office?

The U.S. Constitution leaves no ambiguity when it comes to presidential succession. Should a president die, resign, be removed, or become unable to perform the duties of the office, the vice president assumes power immediately.

Article II, Section 1, Clause 6 of the Constitution states:

“In Case of the Removal of the President from Office, or of his Death, Resignation, or Inability to discharge the Powers and Duties of the said Office, the Same shall devolve on the Vice President.”

In real-world terms, that means the vice president would be sworn in as president as quickly as possible, ensuring there is no gap in leadership during a time of uncertainty.

If such a scenario were to occur during Trump’s current term, the first major development the public would see is Vice President JD Vance taking the oath of office.

What happens next?

Once sworn in, the former vice president immediately becomes president and gains full authority. They may choose to keep the existing cabinet intact or appoint an entirely new leadership team.

The new president can also nominate a vice president of their own choosing, though that nominee must be confirmed by both the House and the Senate.

There are also limits on future elections. If the new president serves less than two years of the original term, they may still run for two full terms of their own. If they serve more than two years, they are eligible for only one additional term.

A modern precedent

The last time this process played out was in 1963, following the assassination of President John F. Kennedy. And that historical example continues to shape today’s procedures for ensuring continuity of government.

Back in 1963, Vice President Lyndon B. Johnson was sworn in as president aboard Air Force One at Dallas Love Field just over two hours after Kennedy’s death.

Johnson chose to retain much of Kennedy’s cabinet, won re-election in 1964, and later opted not to seek another full term.

Eight have died while in office

Out of the 45 men who have served as U.S. President, eight died while still in office—a surprisingly high number for such a position.

Four were assassinated: Abraham Lincoln, James A. Garfield, William McKinley, and John F. Kennedy. William Henry Harrison died of pneumonia in 1841, just a month after taking office, though the popular story that it was caused by skipping a coat at his February inauguration has been debunked.

The other three — Zachary Taylor, Warren G. Harding, and Franklin D. Roosevelt—passed away from various illnesses while serving as president.

What could happen if Trump dies in office

If Donald Trump were to pass away while still in the White House, things could get messy fast.

For one, Trump and his team have a history of ignoring norms, protocols, and even the rule of law, so standard procedures might not go exactly as planned.

A big, extravagant funeral is almost guaranteed, but unlike the outpouring of unity seen after President Kennedy’s death, today’s political climate is far more polarized. With tensions so high and public discourse already deeply divided —much of it shaped by Trump and his supporters — national mourning would likely be anything but universal.