It was not valid because it didn’t have a doctor’s signature
on it. All Obama has to do is present a valid birth certificate to put this uncertainty to rest.
You are incorrect on both points. The name of the doctor is not a required element on a birth certificate. Not having it does not invalidate the certificate. The exact same form which the Obama campaign displayed for reporters and was posted online, the official Hawaiian birth certificate, will satisfay any legal demand for a birth certificate. It is perfectly valid.
As for presenting a different one putting this all to rest, no it wouldn’t. He’s already presented a legal birth certificate and it didn’t. And some of the birther claims are based on delusions that have nothing to do with where he was born, so it wouldn’t settle those things.
Of course he would have no interest in putting this all to rest anyway. Obamam loves birthers. They are doing a great job for him.