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
Vice President of the United States stipulates that the vice president takes over the "powers and duties" of the presidency in the event of a president's removal, death, resignation, or inability. Even so, it does not clearly state whether the vice president became President of the United States or simply acted as president in a case of succession. Debate records from the 1787 Constitutional Convention, along with various participants' later writings on the subject, show that the framers of the Constitution intended that the vice president would temporarily exercise the powers and duties of the office in the event of a president's death, disability or removal,