New Jersey Governor Woodrow Wilson ran to become the nominee, and faced the opposition of Speaker of the United States House of Representatives Champ Clark.
Democratic incumbent President Woodrow Wilson ran for re-election, and faced no major opposition in the primaries.
Former United States Secretary of the Treasury William Gibbs McAdoo and Ohio Governor James Cox were the main candidates.
New York Governor Al Smith faced no major opposition in the primaries but lost in the general election against Herbert Hoover.
Democratic incumbent President Franklin D. Roosevelt ran for re-election, and faced no major opposition in the primaries.
Democratic incumbent President Franklin D. Roosevelt ran again for re-election, and faced no major opposition in the primaries.
Democratic incumbent President Harry Truman ran for election to a full term, and faced no major opposition in the primaries.
Senator Estes Kefauver of Tennessee defeated President Truman in the New Hampshire primary, becoming the first person to ever drive an incumbent from the race during the 20th century.
Thus followed an exciting race between Kennedy and McCarthy, but Vice President Hubert H. Humphrey swept the caucuses and two favorite sons who already endorsed him had won primaries in Ohio and Florida, giving him a substantial lead by the time Senator Kennedy was murdered by Sirhan Sirhan on the day of the California primary.
After a week of being publicly rebuffed by prominent Democrats, McGovern finally managed to get Sargent Shriver to be his new running mate.
Kennedy stumbled badly in an interview, then the Iran hostage crisis in November 1979 seriously undermined Carter as his calm approach caused his poll numbers to rise.
Jackson won several states in the South but was unable to recover after calling Jews "Hymies" and New York City "Hymietown" in an interview with a black reporter.
Mondale gradually pulled ahead, winning a near majority & therefore required (and gained) the super delegates support for the nomination.
See also: Democrats entered the race with hopes to build on mid-term wins that gave them control of the Senate, and that the ongoing Iran Contra scandal would plague the eventual Republican nominee.
Three candidates won multiple primaries: Michael Dukakis (30), Jesse Jackson (13), and Al Gore (7), and for a while the hope of a multi-ballot convention remained alive.
Gary Hart's strong showing in 1984 gave him much early press attention but an extramarital affair with Donna Rice thwarted his campaign.
See also: With popular Democratic incumbent President Bill Clinton running for re-election, the nomination process was uneventful.
See also: After his loss in the last election, former Vice President Al Gore decided not to run in 2004, leaving the field wide open.
However, Edwards managed to finish first only in South Carolina and withdrew after Kerry won decisive victories on Super Tuesday.
See also: Democratic incumbent President Barack Obama ran for re-election, and faced no major opposition in the primaries.
See also: In her second bid for the presidency, former Secretary of State Hillary Clinton of New York ran against Senator Bernie Sanders from Vermont and several other minor candidates.
[7] Author Marianne Williamson and Representative for Minnesota's Third Congressional District in Congress Dean Phillips also launched primary campaigns.
Entrepreneur Jason Palmer won the American Samoa Democratic presidential caucuses, making Joe Biden the first incumbent president to lose a primary contest since Jimmy Carter in 1980.