The Man was written before the Twenty-fifth Amendment to the United States Constitution.

It takes its title from the Twenty-fifth Amendment to the United States Constitution, which deals with the presidential line of succession.

Section 4 of the Twenty-fifth Amendment to the United States Constitution gives Congress a role to play in the event of a presidential disability.

This caused the first-ever invocation of the acting president clause of the Twenty-fifth Amendment to the United States Constitution.

The Twenty-fifth Amendment to the United States Constitution, ratified in 1967, formalized conveyance of authority if a living President was incapacitated.

However, before he resigned, Nixon appointed Gerald Ford to the Vice Presidency in accordance with the Twenty-fifth Amendment to the United States Constitution.

Nearly fifty years later, the Twenty-fifth Amendment to the United States Constitution was passed, allowing the vice president to assume the presidency any time the president was rendered incapable of carrying out the duties of the office.

Under the provisions of the Twenty-fifth Amendment to the United States Constitution, Nixon nominated Republican House Minority Leader Gerald R. Ford to succeed Agnew as Vice President in October 1973.

Revelations included Richard Darman's successful attempt to stall the invocation of Section 4 of the Twenty-fifth Amendment to the United States Constitution when President Reagan was receiving treatment following the 1981 assassination attempt on him.

His resignation triggered the first use of the Twenty-fifth Amendment to the United States Constitution, as the vacancy prompted the appointment and confirmation of Gerald Ford, the Party leaders of the United States House of Representatives, as his successor.

The resulting Twenty-fifth Amendment to the United States Constitution, ratified in 1967, created a process for an orderly transition of power in the case of death, disability, or resignation of the President, and a method of selecting a Vice President when a vacancy occurs in that office.

Among the significant legislation passed during his tenure was the Twenty-fifth Amendment to the United States Constitution which clarifies and refines the office of the Vice President of the United States, the Medicare Act, which Buchanan opposed, and the 1965 Voting Rights Act.

Further, the Chief Justice would preside over the impeachment trial of the Vice President of the United States if, under the terms of the Twenty-fifth Amendment to the United States Constitution, the Vice President is serving as Acting President of the United States.

The Twenty-fifth Amendment (Amendment XXV) to the United States Constitution deals with succession to the Presidency and establishes procedures both for filling a vacancy in the office of the Vice President, as well as responding to Presidential disabilities.