If the President can no longer serve, who assumes the presidency?

The Vice President assumes the presidency if the President can no longer serve. This succession is established by the Presidential Succession Act and the 25th Amendment to the Constitution, which outlines the line of succession and the procedures for dealing with a vacancy in the presidency.

When a President dies, resigns, is removed from office, or otherwise becomes unable to fulfill their duties, the Vice President steps in to ensure a smooth transition of power. This ensures continuity in the executive branch of government, as the Vice President is already familiar with the operations of the office and its responsibilities. The Vice President is elected on the same ticket as the President, meaning they have usually been part of the administration and are prepared to take on the role of President when necessary.