With Donald Trump becoming one of the oldest people elected U.S. president, some have wondered what would happen if he were to die while in office. While such a scenario is hypothetical, the U.S. Constitution clearly outlines the process. If a president dies, resigns, or becomes unable to serve, the vice president immediately assumes the presidency. In this case, Vice President JD Vance would take over and be sworn in as soon as possible.

This process has occurred several times in American history, as eight presidents have died in office, and in every case the vice president succeeded them. Once sworn in, the new president can form his own administration. He may keep existing cabinet members or appoint new ones. The new president also nominates a vice president, who must be confirmed by both houses of Congress.

If Vance were to become president during Trump’s term, his future eligibility for election would depend on how long he served. According to the 22nd Amendment, a person who serves more than two years of another president’s term can only be elected once more. If less than two years remain, he could still run for two full terms.

Historically, a president’s death has not disrupted the U.S. election cycle. The constitutional system ensures continuity of government, meaning leadership transitions occur quickly and the country continues operating normally under the new president.