You would have to listen to Walid Shoebat. He does a marvelous job of it. It’s only very recently that he’s been able to speak about these things, as most of the previous times he’s spoken, those topics have been “off limits” (according to what he said...).
There is a new book coming out that may be better (for studying what he’s saying). Look up info on him and see what you can find out about his new book. I don’t think it’s out yet (but it may be).
Oh..., a follow-up here...
I don’t think Walid Shoebat has anything to say about Obama. I hope you weren’t referring to Obama in light of the Mahdi...