As far as evidence that he HAS a passport - wasn't there a big to do about someone doing an unauthorized search of his passport file?
Oh yes, there was!
http://www.msnbc.msn.com/id/23736254/ns/politics-decision_08/t/passport-files-candidates-breached/
I have no idea if he had a US passport or any other passport in 1981 or at any other time. I have never claimed Obama had a US passport.
What I do say is that US passport holders have never been limited with regard to travel to Pakistan.
Anyone who says otherwise is mistaken, or a liar.
O-bot my ass.