Quote Originally Posted by Jethro View Post
If that's the case, it would serve as very strong evidence that there are at least two citizenships available for the purposes of a passport -- U.S. citizen and State Citizen. It would also imply there is a choice between the two, and the choice made is voluntarily.

It would be fantastic to find out for sure if it's been repealed, and if not, find each State's equivalent and start making passport requests at the State level!
There is plenty of case history. Citizenship with respect to a state still exists to this day. Distinct from citizenship is nationality. And yes one can volunteer into U.S. citizenship--a Citizen of one of the several states can volunteer into the U.S. Army for example.