July 16, 1973.
It was afternoon, during the hearings of the Senate Watergate Committee.
Suddenly there was a not previously scheduled witness brought forth.
He was, surprisingly, questioned by Minority Counsel Fred Thompson.
His name was Alexander Butterfield.
He was at that moment, administrator of the FAA.
He had previously been an assistant to White House Chief of Staff H. R. Haldeman, with knowledge of the communications systems in the White House.
And then we heard this:
That was the beginning of the end for Nixon.
Both the Senate and the Special Prosecutor wanted the tapes.