The official nominations take place at the national convention.
Political parties developed the national convention to nominate presidential candidates.
For President, primary elections have grown tremendously in number so that in most years, the nomination is decided before the national convention. For vice-president, in recent years, the presidential candidates has chosen the nominee rather than leaving the choice up to the convention delegates.
Candidates are nominated at their party's national convention.
candidates try to win votes from the voters at the national convection.
The official nomination of the president and vice president.
official nomination of president and vice president
all candidates for state offices candidates for Congressional office the delegates to the national convention of the party
The National Convention.