<p>Sen. Edward Kennedy leaves the Dukes County Courthouse in Edgartown, Mass., on July 25, 1969, after pleading guilty to leaving the scene of a fatal auto accident. Late on July 18, Kennedy's car plunged into a pond on Chappaquiddick Island. He was able to escape but Mary Jo Kopechne, 28, his passenger, drowned. (Photo: Ted Dully/The Boston Globe via Getty Images) </p>
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