[a fool in paradise]

I cannot be categoric about this, but I have read in many places that his very first U.S. passport (as opposed to being included on his mother’s as a child) was when he became a Senator, which did not require production of a birth certificate or other proof of identity. His prior overseas travel was most likely done on an Indonesian passport.

Except he travelled to Pakistan for several months as a wandering young adult.

[Nipfan]

I don’t think you read my post to the end.

“His prior overseas travel was most likely done on an Indonesian passport.”

No, I do not have proof of this, except that his own behaviour in hiding every single detail makes it more and more likely to be true.