[ComputerGuy]

In this case, absence of evidence is evidence of absence.
The fact that he mentions it without being asked tells me that it's on his mind. Imagine the scoop it would be for one of his sycophants in the media to have 0bama on his show, certified BC in-hand. I'm past the point of thinking this is just a 'who's your daddy?' thing.
He doesn't produce it because he can't.

[Sloane_Ranger]

“I’m past the point of thinking this is just a ‘who’s your daddy?’ thing.
He doesn’t produce it because he can’t.”

I agree. It’s something much more egregious which obviously disqualifies him for the high office he has conned his way into.

Where are the sources within the intelligence agencies who may have this information ?