Recalling the experience of 1928 Catholic Democratic presidential nomineeAl Smith, many wondered if anti-Catholic prejudice would affect Kennedy's chances of winning the nomination and the election in November. To prove his vote-getting ability, Kennedy challenged Minnesota SenatorHubert Humphrey, a liberal, in the Wisconsin primary. Although Kennedy defeated Humphrey in Wisconsin, the fact that his margin of victory came mostly from heavily Catholic areas left many party bosses unconvinced of Kennedy's appeal to non-Catholic voters. Kennedy next faced Humphrey in the heavily Protestant state of West Virginia, where anti-Catholic bigotry was said to be widespread. Humphrey's campaign was low on money and could not compete with the well-organized, well-financed Kennedy team. Kennedy's attractive sisters and brothers combed the state looking for votes, leading Humphrey to complain that he "felt like an independent merchant running against a chain store." On primary day, Kennedy crushed Humphrey with over 60% of the vote. Humphrey withdrew from the race and Kennedy had gained the victory he needed to prove to the party's bosses that a Catholic could win in a non-Catholic state. In the months leading up to the Democratic Convention Kennedy traveled around the nation persuading delegates from various states to support him. However, as the Convention opened, Kennedy was still a few dozen votes short of victory. Although Kennedy won primaries by comfortable margin, his main opponent, Senate Majority Leader Lyndon B. Johnson, who did not participate in primaries, had a very strong base in party establishment and gained many delegates. Johnson did not join any primary, but was a write-in.
Candidates
The following political leaders were candidates for the 1960 Democratic presidential nomination:
Major candidates
These candidates participated in multiple state primaries or were included in multiple major national polls.
Competing in primaries
Bypassing primaries
The following candidates did not place their name directly on the ballot for any state's presidential primary, but may have sought to influence to selection of un-elected delegates or sought the support of uncommitted delegates.
Favorite sons
The following candidates ran only in their home state's primary or caucus for the purpose of controlling its delegate slate at the convention and did not appear to be considered national candidates by the media.
The following persons were listed in two or more major national polls or were the subject of media speculation surrounding their potential candidacy, but declined to actively seek the nomination.
Pat Brown, Orval E. Faubus, Albert Dean Rosellini: each 1 vote
Vice-presidential nomination
Kennedy announced Lyndon B. Johnson as his choice of running-mate on the afternoon following his nomination. Johnson was nominated by acclamation that evening.