30-04-2014, 05:29 AM
It is my undertanding that Nixon believed that the party leader (name?) of the Democrats possessed some blackmail material that had been passed to them by someone connected to the JFK investigation. Daniel Ellsberg was somehow involved, or his release of the Pentagon Papers had Nixon spooked. (Sorry for the pun) I don't remember all the specific names and whatnot, but it should be easy enough to google.