Sure, and I have proof they are real:
I, President George W Bush, confess that the Downing street memo's are real.
Of coarse, I had to destroy the original document.
Another staffer for an ultraliberal MP ends up being the source of the leak of national security documents. Gosh, what a strange notion. I'm sure it would never, ever occur to a staffer to one of the Senate Dimocrats to leak something from the Senate Intelligence Committee to the NY Times.