Vice President of the United States the Twenty-fifth Amendment established a procedure for filling such a vacancy: This procedure has been implemented twice since the amendment came into force. The first instance occurred in 1973 following the October 10 resignation of Spiro Agnew, when Gerald Ford was nominated by President Richard Nixon and confirmed by Congress. The second occurred 10 months later following Ford's August 9, 1974 accession to the presidency upon Nixon's resignation, when Nelson Rockefeller was nominated by President Ford and confirmed by Congress. Had it not been for this new constitutional mechanism, the vice presidency would have remained vacant after Agnew's resignation and
Presidency of Richard Nixon Nixon's initial cabinet also contained an unusually small number of Ivy League graduates, with the exception of George P. Shultz, who held three different cabinet positions during Nixon's presidency. In 1973, as the Watergate scandal came to light, Nixon accepted the resignations of Haldeman, Erlichman, and Mitchell's successor as Attorney General, Richard Kleindienst. Haldeman was succeeded by Alexander Haig, who became the dominant figure in the White House during the last months of Nixon's presidency as Nixon increasingly focused on Watergate. As the Watergate scandal heated up in mid-1973, Vice President Spiro Agnew became a target in an unrelated investigation