Progressive Politics, Gun Control, Single Payer Healthcare and Free Abortions for All!

I disagree here somewhat. Now, maybe you know more about the background of ICE and how it's been utilized in the past, admittedly I am not. But from the outside looking in, I can't imagine a reason why ICE would have gone into reservations looking for Native Americans. If ICE usually isn't sicced on Native Americans, it would make sense that they don't have a process for validating the citizenhood of these Americans (although that certainly is quite an oversight).

As far as what documentation ICE looks for, isn't that the stuff on this list:

https://www.uscis.gov/save/current-user-agencies/commonly-used-immigration-documents