Sharing and Indian Politics

Today we were about to share a class with other people, Mr. Deron Marquez taught us about sovereignty… well I don’t know much about that term but it was showed in many ways (which I didn’t get as much), I seen a short clip that Indians weren’t allowed to govern themselves and so forth. So why can a tribe can make treaties but not the federal government? that I don’t remember as much ;3
~Jessica Chang~