You do have reason to believe it because it is likely that he was born in Hawaii. And we have reason to believe otherwise because of his obfuscations on this subject. Since the CONSTITUTION says that a person SHALL NOT BE ELIGIBLE unless conditions are met, the conditions need to be met by Obama.
Lest we forget the claim that Frank Marshall Davis is the real Father...
Even Donofrio believes that Obama was born in Hawaii.
I have faith that Roberts, Scalia, Thomas and Alito will make the right decision in this case.