Webafter being ordered by a unanimous supreme court ruling to release a set of unedited tapes of presidential conversations, the white house finally relents and the so. Webthe smoking gun conversation: Haldeman and nixon discuss the progress of the fbi's investigation especially the tracing of the source of money found on the burglars. Weblater, this order, revealed in what became known as the nixon tapes (nixon’s secret recordings of his phone calls and conversations in the oval office),. 5, 1974 'smoking gun' goes public. 9, 1974 nixon resigns. Five men are arrested after breaking into the democratic national committee’s watergate. Webthe recording, known as the “smoking gun,” showed that mr. Nixon wanted a top cia official to wave the fbi off its investigation. “that was like a gut punch,” said.