Any Federal Court ruling would suffice to put this to bed.
Absent that, there will always be those who claim he's an usurper.
Well, I would take a District court but either way the Amicus money will be flying and this will have fast track review at the Court of Appeals and Emergency resolution at the Supreme Court. There are stipulated facts so it is not rocket science. It will come down to the original meaning of the Founders. Time to get this final — not at the convention.