"<strong>Richard Nixon:</strong> In 1974, five years after he was first elected, Nixon became the first U.S. President to resign from office. He stepped down after the <a href=""http://www.cnn.com/2015/06/15/living/the-seventies-times-reports-on-watergate/"" target=""_blank"">Watergate scandal,</a> which stemmed from a break-in at the Democratic National Committee office during the 1972 presidential campaign."
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