I think another lie by Moore.
I would bet my life savings that this is a lie. Moore is a serial liar who would never reject anything--no matter how flimsy or patently impeachable--to drive his agenda. This is self-serving bullsh*t to make Moore seem to be more responsible than he is.
That said, Dick Thornburgh will probably demand Moore disclose who proferred these documents. Moore knows he can stonewall this to "protect his sources" because the CBS whitewash investigation lacks subpoena power. This will give him even more publicity, which he craves.
I have read somewhere that I BELIEVE it was AP and the Washington Post ALSO had copies of the documents and they QUESTIONED their validity.