It's a whole lot more plausible than the BFEE crap. JFK and LBJ totally despised each other, and LBJ was as crooked, dishonest, and downright nuts as anyone who has ever held high office in our entire history, and I include VP Aaron Burr in that.
It's funny, how we think along not-quite-parallel-but-nearly-parallel lines.
I just started reading that rabid Johnson-hater Robert Cato's book
Lyndon Johnson: The Path to Power, which goes to 1941.
As you know, I have feelings of affection for Lyndon; after all, he was the best Democrat president in my lifetime--Kennedy, Carter, Clinton, and 0bumbles can't hold a candle to him--but more so out of sympathy simply because he proved that old adage, "no good deed goes unpunished."
Here, he gave the minorities, the poor, the young, the aged, all these goodies (of course paid for by other people).....and then they turned on him. Talk about blatant ingratitude.