Lyndon Johnson actually said...

"We keep our commitments."

"There is a different type of criticism. There is a difference between constructive dissent and storm trooper bullying, howling, and taking the law into your own hands."

"I don't think this is the place to do our negotiating."

"Hanoi made it very clear in response to my appeal from the Enterprise that their position, in effect, was the same as it has always been."