Im sure they will be just as compelling as his last 3 of a random self published audiobook, a known propaganda rag and a random Twitter user posting a Fox News clip.
It is true of course that "Deep Throat", the source who allegedly kept the journalistic investigation climbing through the Nixon Administration's ranks, is commonly held to have been Mark Felt[2], occupant of the number two job at the FBI at the time, so there is that.
What did for Nixon in the end, though, was mostly the taped evidence of his clumsy attempts to have the CIA, in the person of Richard Helms, warn the FBI off investigating his campaign's dubious money trail, or risk having "the whole Bay of Pigs thing" revealed if they didn't. (Whatever that might have been!)
1: https://en.wikipedia.org/wiki/Geoff_Shepard
2: https://en.wikipedia.org/wiki/Mark_Felt#%22Deep_Throat%22_in...