Ball begins his examination of the erosion of tribal sovereignty by reviewing the so-called Marshall trilogy, the three cases that established two fundamental principles: tribal sovereignty and the power of Congress to protect Indian tribes from the encroachment of state law. Neither the Supreme Court nor Congress has remained faithful to these principles, Ball shows. Beginning with Williams v. Lee, a 1959 case that highlighted the tenuous position of Native legal authority over reservation lands and their residents, Ball analyzes multiple key cases, demonstrating how the Supreme Court's decisions weakened the criminal, civil, and taxation authority of tribal nations. During an era when many tribes were strengthening their economies and preserving their cultural identities, the high court was undermining sovereignty. In Atkinson Trading Co. v. Shirley (2001) and Nevada v. Hicks (2001), for example, the Court all but obliterated tribal authority over non-Indians on Native land.
By drawing on the private papers of Chief Justice Earl Warren and Justices Harry A. Blackmun, William J. Brennan, Thurgood Marshall, William O. Douglas, Lewis F. Powell Jr., and Hugo L. Black, Ball offers crucial insight into federal Indian law from the perspective of the justices themselves. The Erosion of Tribal Power shines much-needed light on crucial changes to federal Indian law between 1959 and 2001 and discusses how tribes have dealt with the political and economic consequences of the Court's decisions.