Except that years later, Rockefeller grew more conservative. There is a great pic of him out there giving the Finger to a bunch of leftwingers.
But this does offer an opportunity to contrast Nelson's attitude vis-a-vis leftwing hecklers and Goldwater supporters. Facing leftwinger it's like "Screw you."
At the convention podium facing Goldwater supporters the look on Nelson's face was like what a lone surviving soldier must have firing an M-60 machine gun at on rushing enemy hordes; to wit, I know it's a lost cause but I'm going to kill as many of you bastards that I can!"