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
Spiro Agnew wooed by supporters of the former vice president Richard Nixon, whose campaign for the Republican nomination was well under way. Agnew had no antagonism towards Nixon, and in the wake of Rockefeller's withdrawal had indicated that Nixon might be his "second choice". When the two met in New York on March 29 they found an easy rapport. Agnew's words and actions after the April disturbances in Baltimore delighted conservative members of the Nixon camp such as Pat Buchanan, and also impressed Nixon. When on April 30 Rockefeller re-entered the race, Agnew's reaction was cool. He commended the governor as potentially