Slideshow: Sen. Edward Kennedy

Kennedy Manuel Balce Ceneta/Associated Press

Sen. Kennedy sworn in by LBJ Associated Press

Kennedy brothers Associated Press

Chappaquiddick Associated Press/File Photo

Edward Kennedy at 1980 DNC Associated Press/File Photo

Kennedy and Clinton Doug Mills/Associated Press

Barack Obama, Ted Kennedy Evan Vucci/Associated Press

George W. Bush, Edward Ted Kennedy Ron Edmonds/Associated Press