Sens. Thomas Eagleton (left) and George McGovern celebrate their candidacy for vice president and president, respectively, at the Democratic National Convention in 1972.
August 4, 2012 In 1972, Democratic presidential candidate George McGovern chose the young senator as his running mate. Just 18 days later, Eagleton was forced to drop out. The incident forever changed the way presidential candidates pick their No. 2s.
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