How do we know his father was really a Kenyan?
We need the birth certificate anyway.
Unless the fact that he ran under a fake name invalidates his election.
I’m not saying that we DON’T need the birth certificate. We certainly DO! However, since we don’t know what’s on it, it’s a crapshoot. We DO know that the father he claims was never a U.S. citizen. Go after the sure thing first, that will likely produce the documentation.