he said that son of a bitch roosevelt got my son killed. obviously, an outrageous statement. but it shows the depth of pain that joe felt. >> after his death, it was really up to jfk to step up. there was a moment where his father said, okay, you're next. >> just after joe jr. died, jack said to one of his friends, i can feel my father's breath on my neck. >> after the war, joe sr. pressures jack to launch his political career. >> jack really wasn't ready for the role that he was about to take on. first of all, he was young, and second of all, all of the attention up to that point had been on grooming joe. >> but the kennedys always find a way to make their dreams come true.