Answer
Article 1, Section 8 of the United States Constitution vests Congress, and by extension the Executive and Judicial branches of our government, with the authority to engage in relations with the tribes, thereby firmly placing tribes within the constitutional fabric of our nation. When the governmental authority of tribes was first challenged in the 1830's, U. S. Supreme Court Chief Justice John Marshall articulated the fundamental principle that has guided the evolution of federal Indian law to the present: That tribes possess a nationhood status and retain inherent powers of self-government.
