I always found it interesting that Adam Walinsky was one of Robert Kennedy's top aides opposed to the war, when it was Robert Kennedy's brother JFK who got us into Vietnam, selected incompetents like McNamara, Rusk and the Bundy brothers to run and ruin the war (kept on by LBJ) and who turned against it when his brother's strategy went haywire.
He turned when he saw how well Gene McCarthy did in the New Hampshire primary among the Rats. Bobby and Kerry were similar --- they didn't really believe in anything except their own ambitions.