The U.S. constitution specifically mentions American Indians three times. Article I, section 2, clause 3 and the fourteenth amendment section 2 address the handling of "Indians not taxed" in the apportionment of the seats of the House of Representatives according to population and in so doing suggest that Indians need not be taxed.
(feel free to post the entire clause)
that was for voting rights the 'tribal' members were given US citizenship in 1924 your point lacks merit
Your "facts" lack merit. They still retain their Treaty and Constitutional rights regardless of whether or not they are citizens (precisely as I already posted proof of).
The states have NO authority over the Indians.
Everyone's entitled to their own opinions, but not their own facts.