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 and to make it clear his running mate had his support. Agnew could also usefully play an "attack dog" role, as Nixon had in 1952. Initially, Agnew played the centrist, pointing to his civil rights record in Maryland. As the campaign developed, he quickly adopted a more belligerent approach, with strong law-and-order rhetoric, a style which alarmed the party's Northern liberals but played well in the South. John Mitchell, Nixon's campaign manager, was impressed, some other party leaders less so; Senator Thruston Morton described Agnew as an "asshole". Throughout September, Agnew was in the news, generally as a result of