Who was the Democratic Party presidential nominee that lost to Richard Nixon in the 1972 presidential election?
Presidency of Richard Nixon:  Four years later, in 1972, he won reelection in a landslide victory over George McGovern. George McGovern: George Stanley McGovern (July 19, 1922 – October 21, 2012) was an American historian, author, U.S. Representative, U.S. Senator, and the Democratic Party presidential nominee in the 1972 presidential election.
George McGovern