Jackie Kennedy said JFK feared a Lyndon Johnson presidency

The president gave no serious consideration to dropping Johnson from the ticket in 1964, Jacqueline Kennedy recalled. But he did have some talks about how to avoid having Johnson run for president in 1968, at the end of what would have been Kennedy’s second term, she said.

“He didn’t like that idea that Lyndon would go on and be president because he was worried for the country,” she said. “Bobby told me that he’d had some discussions with him. I forget exactly how they were planning or who they had in mind. It wasn’t Bobby, but somebody. Do something to name someone else in ’68.”