Then you have no proof at all do you?
Now for legal proof, you'd need his birth certificate, a real paper one, certified with raised seal, and possibly with affidavits.
And what, other than you opinion, identifies that as the gold standard of proof of natural-born citizenship?
You'd also need some proof, that the person named on that BC as his father (if any!) was indeed not a US Citizen.
I don't think that anyone is claiming that he was. But that fact is irrelevant.
An honest man would be fully cooperating with those investigations, as long as they were limited to the single question of eligibility.
A man who believes he has already more than fulfilled that requirement would not be inclined to cooperate just to humor you.
In an earlier case, his lawyers claimed something on the long form would be deeply and personally embarrassing.
Which case? Quote please.
Bastardy perhaps, or a father other than BHO Sr. is about the extent of what it could be, that is not already known, such as his mother being "Caucasian", and still not constitute being ineligible, which would certainly be deeply embarrassing, to say the least.
And why is that something you need to know in order for him to prove his eligibility?
I don't but it could be something embarrassing on the BC that would not be indication of ineligibility.
I was trying to give your guy a break.
When the dollar is virtually useless as a currency and our economy is swamped by the debt of his spending, this argument will be meaningless as well.