The current state of Native Anerican

What is the legal status of American Indian and Alaska Native tribes? 
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.

What is the federal Indian trust responsibility?
The federal Indian trust responsibility is a legal obligation under which the United States “has charged itself with moral obligations of the highest responsibility and trust” toward Indian tribes (Seminole Nation v. United States, 1942). This obligation was first discussed by Chief Justice John Marshall in Cherokee Nation v. Georgia (1831). Over the years, the trust doctrine has been at the center of numerous other Supreme Court cases, thus making it one of the most important principles in federal Indian law.

What does tribal sovereignty mean to American Indians and Alaska Natives?
When tribes first encountered Europeans, they were a power to be reckoned with because the combined American Indian and Alaska Native population dominated the North American continent.  Their strength in numbers, the control they exerted over the natural resources within and between their territories, and the European practice of establishing relations with countries other than themselves and the recognition of tribal property rights led to tribes being seen by exploring foreign powers as sovereign nations, who treatied with them accordingly.

What is the relationship between the tribes and the United States?
The relationship between federally recognized tribes and the United States is one between sovereigns, i.e., between a government and a government. This “government-to-government” principle, which is grounded in the United States Constitution, has helped to shape the long history of relations between the federal government and these tribal nations.