Claim: John McCain campaigned for presidency in the 56th quadrennial election.
Evidence: He was the Republican nominee for the 2008 U.S. presidential election.
The United States presidential election of 2008 was the 56th quadrennial presidential election.
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.