Tribal sovereignty refers to the inherent authority of Indigenous nations within the United States to govern themselves, their members, and their territories. It is a legal, political, and historical concept grounded in the pre-colonial existence of Native nations as independent polities and formalized through treaties, federal statutes, and judicial interpretation. The term describes a government-to-government relationship between recognized tribes and the federal government, distinct from the relationship of states or ordinary citizens to federal authority. The scope, limits, and legitimacy of tribal sovereignty remain actively contested in law, politics, and political philosophy.

The United States recognized tribal nations as sovereign entities from its earliest years, entering into treaties with them as it did with foreign powers. The foundational legal framework was established in a trilogy of Supreme Court decisions by Chief Justice John Marshall in the early nineteenth century. In Cherokee Nation v. Georgia (1831), the Court described tribes as “domestic dependent nations” - sovereign but not foreign, with a relationship to the federal government that, in the Court's words, resembled “that of a ward to his guardian.” In Worcester v. Georgia (1832), the Court held that state law had no force within tribal territory and that tribes retained inherent sovereignty subject only to federal authority. These rulings laid the groundwork for the plenary power doctrine, under which Congress holds broad and largely unchecked authority over tribal affairs, though the doctrine as a robust and nearly unreviewable authority developed more fully in later decisions, particularly United States v. Kagama (1886) and Lone Wolf v. Hitchcock (1903).

Federal Indian policy has oscillated dramatically over time, moving through periods of treaty-making, forced removal, allotment and assimilation, termination of tribal status, and, beginning in the 1970s, a policy of self-determination that has largely remained in effect. The Indian Self-Determination and Education Assistance Act of 1975 allowed tribes to contract for the administration of federal programs, expanding practical autonomy. See Tribal Sovereignty - History for a full account.

As of the early twenty-first century, the federal government recognizes 574 tribal nations. Recognized tribes may exercise jurisdiction over their members and, in many cases, over non-members within reservation boundaries, though the extent of that jurisdiction over non-Indians has been narrowed by Supreme Court rulings, particularly since the 1980s. Tribes operate their own courts, legislatures, law enforcement agencies, and social services. They may also conduct certain economic activities - most prominently gaming - under the Indian Gaming Regulatory Act of 1988, generating revenue used to fund tribal government functions. Jurisdictional questions involving tribes, states, and the federal government remain a source of ongoing litigation.

There is broad legal consensus that tribal sovereignty exists as a recognized doctrine in U.S. law, rooted in the Constitution, treaty obligations, and centuries of federal statute and case law. The Legal Consensus on Tribal Sovereignty page summarizes the scope and limits of that consensus. Significant scholarly and political disagreement exists, however, regarding whether that legal framework is normatively justified, adequately protective of tribal interests, or consistent with the equal protection of individual rights.

Tribal Sovereignty as Inherent and Inalienable
Some legal scholars, tribal advocates, and Indigenous rights organizations hold that tribal sovereignty predates the United States, was never fully ceded, and cannot be granted or extinguished by federal action alone. On this view, the plenary power doctrine is a colonial imposition inconsistent with both international norms and the political reality of tribes as self-determining peoples. See Inherent Sovereignty Viewpoint.

Federal Trust Framework as Protective and Legitimate
Others argue that the existing federal-tribal relationship, including plenary power, reflects a practical and historically negotiated arrangement that provides meaningful protections for tribal communities. This view holds that federal recognition and oversight, however imperfect, offer stability and resources that unilateral assertions of full independence could not. See Federal Trust Framework Viewpoint.

State Jurisdiction and Equal Protection
A competing view, often associated with state governments and some conservative legal scholars, holds that tribal sovereignty as currently interpreted creates jurisdictional anomalies, undermines state authority, and produces unequal treatment of non-Indian residents within reservation boundaries. Proponents argue for expanded state jurisdiction and greater integration of tribal governance into standard constitutional frameworks. See State Jurisdiction Viewpoint.

Individual Rights and Tribal Authority
A distinct line of criticism focuses on the treatment of individual rights within tribal governance structures, including limitations on civil liberties protections under the Indian Civil Rights Act of 1968 (which applies a modified version of constitutional rights to tribal governments), questions about the rights of non-member Indians, and the treatment of dissenting tribal members. See Individual Rights Viewpoint.

Abolition or Termination
A minority position holds that tribal sovereignty as a legal category is incoherent or harmful - either because it perpetuates a racially or ethnically defined class of government with special privileges (a characterization federal courts have generally rejected on the grounds that tribal status is political rather than racial), or because it traps tribal members in dependent political structures. This view was associated with mid-twentieth-century federal termination policy and has contemporary advocates in some libertarian and assimilationist quarters. See Termination and Abolition Viewpoint.

• Tribal Sovereignty - History
• Tribal Sovereignty - Debate
• Legal Consensus on Tribal Sovereignty
• Federal Indian Law
• Treaty Rights
• Indian Gaming
• Plenary Power Doctrine
• Indigenous Rights

1. Cherokee Nation v. Georgia, 30 U.S. (5 Pet.) 1 (1831).
2. Worcester v. Georgia, 31 U.S. (6 Pet.) 515 (1832).
3. United States v. Kagama, 118 U.S. 375 (1886).
4. Lone Wolf v. Hitchcock, 187 U.S. 553 (1903).
5. Indian Self-Determination and Education Assistance Act, Pub. L. 93-638, 88 Stat. 2203 (1975).
6. Indian Gaming Regulatory Act, Pub. L. 100-497, 102 Stat. 2467 (1988).
7. Bureau of Indian Affairs, “Frequently Asked Questions,” U.S. Department of the Interior, https://www.bia.gov/frequently-asked-questions (listing 574 federally recognized tribes as of 2023).
8. Oliphant v. Suquamish Indian Tribe, 435 U.S. 191 (1978) (limiting tribal criminal jurisdiction over non-Indians).
9. Montana v. United States, 450 U.S. 544 (1981) (limiting tribal civil jurisdiction over non-member conduct on fee lands within reservations).
10. Indian Civil Rights Act of 1968, 25 U.S.C. §§ 1301-1304.
11. Felix S. Cohen, Handbook of Federal Indian Law (1942; rev. ed. LexisNexis 2012), the standard treatise on federal Indian law.