Claim: John McCain campaigned for presidency in the 56th quadrennial election.

In United States politics and government , the term presidential nominee has two different meanings :   A candidate for president of the United States who has been selected by the delegates of a political party at the party 's national convention -LRB- also called a presidential nominating convention -RRB- to be that party 's official candidate for the presidency .  A person nominated by a sitting U.S. president to an executive or judicial post , subject to the advice and consent of the Senate . -LRB- See Appointments Clause , List of positions filled by presidential appointment with Senate confirmation . -RRB-