Voting is February 9.
Contested primary winners.
Democrats
2008: Hillary Clinton. Not nominated
2004: John Kerry. Nominated.
2000: Al Gore. Nominated.
1992: Paul Tsongas. Not nominated.
1988: Michael Dukakis. Nominated.
1984: Gary Hart. Not nominated.
1980: Jimmy Carter. Nominated.
1976: Jimmy Carter. Nominated.
1972: Edmund Muskie. Not nominated.
1968: Lyndon Johnson. Not nominated.
1956: Estes Kefauver. Not nominated.
1952: Estes Kefauver. Not nominated.
Republicans
2012: Mitt Romney. Nominated.
2008: John McCain. Nominated.
2000: John McCain. Not nominated.
1996: Pat Buchanan. Not nominated.
1992: George H.W. Bush. Nominated.
1976: Gerald R. Ford. Nominated.
1972: Richard Nixon. Nominated.
1968: Richard Nixon. Nominated.
1964: Henry Cabot Lodge, Jr. Not nominated.
1952: Dwight D. Eisenhower. Nominated.
1948: Harold Stassen. Not nominated.
Contested primary winners.
Democrats
2008: Hillary Clinton. Not nominated
2004: John Kerry. Nominated.
2000: Al Gore. Nominated.
1992: Paul Tsongas. Not nominated.
1988: Michael Dukakis. Nominated.
1984: Gary Hart. Not nominated.
1980: Jimmy Carter. Nominated.
1976: Jimmy Carter. Nominated.
1972: Edmund Muskie. Not nominated.
1968: Lyndon Johnson. Not nominated.
1956: Estes Kefauver. Not nominated.
1952: Estes Kefauver. Not nominated.
Republicans
2012: Mitt Romney. Nominated.
2008: John McCain. Nominated.
2000: John McCain. Not nominated.
1996: Pat Buchanan. Not nominated.
1992: George H.W. Bush. Nominated.
1976: Gerald R. Ford. Nominated.
1972: Richard Nixon. Nominated.
1968: Richard Nixon. Nominated.
1964: Henry Cabot Lodge, Jr. Not nominated.
1952: Dwight D. Eisenhower. Nominated.
1948: Harold Stassen. Not nominated.