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 the 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.
The 1952 primary season was one of only two where a challenge to an incumbent president of either party was successful, the other being 1968. Prior to this, the last incumbent to try and fail to win his party's nomination was Chester Arthur in 1884 on the Republican side, and Andrew Johnson in 1868 on the Democratic.
The expected candidate for the Democratic nomination was incumbent President Harry S. Truman. However, Truman entered 1952 with his opinion poll popularity plummeting. The bloody and indecisive Korean War was dragging into its third year, Senator Joseph McCarthy's anti-Communist crusade was stirring public fears of an encroaching “Red Menace”, and the disclosure of widespread corruption among federal employees left Truman at a low political ebb. Truman's main opponent was populist Tennessee SenatorEstes Kefauver, who had chaired a nationally televised investigation of organized crime in 1951 and was known as a crusader against crime and corruption. The Gallup poll of February 15 showed Truman's weakness: nationally Truman was the choice of only 36% of Democrats, compared with 21% for Kefauver. Among independent voters, however, Truman had only 18% while Kefauver led with 36%. In the New Hampshire primary Kefauver upset Truman, winning 19,800 votes to Truman's 15,927 and capturing all eight delegates. Kefauver graciously said that he did not consider his victory "a repudiation of Administration policies, but a desire...for new ideas and personalities." Stung by this setback, Truman soon announced that he would not seek re-election.
The rise of Estes Kefauver
With Truman's withdrawal, Kefauver became the front-runner for the nomination, and he won most of the primaries. Nonetheless, most states still chose their delegates at the Democratic Convention via state conventions, which meant that the party bosses - especially the mayors and governors of large Northern and Midwestern states and cities - were able to choose the Democratic nominee. These bosses strongly disliked Kefauver; his investigations of organized crime had revealed connections between mafia figures and many of the big-city Democratic political organizations. The party bosses thus viewed Kefauver as a maverick who could not be trusted, and they refused to support him for the nomination. Instead, with President Truman taking the lead, they began to search for other, more acceptable, candidates. However, most of the other candidates had a major weakness. Senator Richard Russell of Georgia had much Southern support, but his support of racial segregation and opposition to civil rights for Southern blacks led Northern delegates to reject him as a racist. Truman favored U.S. diplomat W. Averell Harriman of New York, but he had never held an elective office and was inexperienced in politics. Truman next turned to his Vice-President, Alben Barkley, but at 74 he was rejected as being too old by labor union leaders.
Stevenson
One candidate soon emerged who seemingly had few political weaknesses: Governor Adlai Stevenson II of Illinois. The grandson of former Vice-President Adlai E. Stevenson, Stevenson came from a distinguished family in Illinois and was well known as a gifted orator, intellectual, and political moderate. In the spring of 1952 President Truman tried to convince Stevenson to take the presidential nomination, but Stevenson refused, stating that he wanted to run for re-election as Governor of Illinois. Yet Stevenson never completely took himself out of the race, and as the convention approached, many party bosses – as well as normally apolitical citizens – hoped that he could be "drafted" to run.
The 1952 Democratic National Convention was held in the International Amphitheatre in Chicago, the same venue where the Republicans had gathered two weeks earlier. The primary season had been decisively in Kefauver's favor and he had momentum coming in, but President Truman was still angry at "Cow-Fever's" defeat of him in New Hampshire, and the Tennessee Senator was unable to get enough delegate strength to win the nomination outright due to the delegate selection processes in most of the states at the time. The convention itself would prove, in retrospect, the last of its kind.
