My brother and Ted Cruz and John McCain all already have their answer regarding their US citizenship and they have had it for a very long time under the law. It’s rather you amateur, part time, basement dwelling internet warriors trolls with no legal degrees nor any degrees what so ever and to boot, with very little basic reading comprehension, who think they know it all yet know nothing and who read things that are simply not there, read things into prior legal opinions that do not say what you think and would like or wish them to say and look to English and French common laws from hundreds and hundreds ago, from years far well before the founding of our nation that have no bearing on our US Constitution, the very feudal laws and the Divine Right of Kings that we as a nation cast off and replaced with a Constitutional Republic.
My brother and Ted Cruz are not in any sort of “limbo” regardless of your claims and need not prove anything to you nor to anyone else regarding their citizenship.
If your brother was elected President his opponent could file suit challenging his eligibility and ACCORDING TO THE STATE DEPARTMENT’S DOCUMENT describing citizenship laws, the court could rule him non-eligible.
That’s not legal limbo?
I would say that the fact of your brother being involved, excludes you from being reachable by any logical or factual argument.
What sort of man would agree to any perceived de-legitimizing of his brother? No matter what the argument?