Dates on which candidates clinched the nomination for the presidency in their parties:

1996:

Bill Clinton (D) _ March 12

Bob Dole (R) _ March 26

1992:

George Bush (R) _ April 28

Clinton (D) _ June 2

1988:

Bush (R) _ April 26

Michael Dukakis (D) _ June 7

1984:

Ronald Reagan (R) _ May 8

Walter Mondale (D) _ June 5

1980:

Reagan (R) _ May 26

Jimmy Carter (D) _ June 3

1976:

Carter (D) _ July 14

Gerald Ford (R) _ Aug. 19

1972:

George McGovern (D) _ July 12

Richard Nixon (R) _ Aug. 22

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Nomination clinched at party convention.