|Here's a little history of how the 25th Amendment came about:|
The assassination of President Kennedy in 1963 shocked the nation in more ways than the obvious. The advancement of medical technology had many hoping that the President could have been saved after being shot. That was not the case, but if he had been, Kennedy could have been in a coma for an extended period of time, perhaps never able to fully function again. He would be the President, but would not be able to fulfill his duties. The resulting power vacuum would cause a constitutional crisis - who is President? Who has the power of the Presidency?
Less than two years after Kennedy's death, on July 6, 1965, the Congress passed the 25th Amendment, where the line of succession was not only clarified, but what was to be done in the case of presidential disability was addressed. The selection of a Vice President for an empty Vice Presidential seat was also provided for. The states ratified the amendment on February 10, 1967 (584 days). The second clause, dealing with the filling of a vacancy in the Vice Presidency, was used less than six years later when Gerald Ford assumed the Vice Presidency upon the resignation of Spiro Agnew.