FILE - In this July 14, 1972 file photo, Sen. Edward Kennedy introduces the Democratic presidential nominee, Sen. George McGovern to the party's delegates at Convention Hall in Miami Beach, Fla. To the left is his wife Joan. Kennedy, the liberal lion of the Senate, has died after battling a brain tumor. He was 77. Kennedy's family announced his death in a brief statement released early Wednesday, Aug. 26, 2009. (AP Photo, File)