Finally, after the death of President John F. Kennedy in 1963 and the resulting vice-presidential vacancy, Congress debated a constitutional amendment related to the structure of the vice presidency. In 1967 the Twenty-fifth Amendment, addressing presidential vacancy and disability, became part of our Constitution. The absence of any provision for filling a vice-presidential vacancy had become intolerable in the modern era. Added impetus for the change came from a growing public concern at the time about the advanced ages of President pro tempore Carl Hayden, who was 80, and House Speaker John W. McCormack, who was 76. The amendment states that the president may appoint a vice president to fill a vacancy in that office, subject to approval by both houses of Congress.sheeeit!