McGirt v. Oklahoma
The Supreme Court ruled that the Creek Nation's reservation — covering roughly three million acres of eastern Oklahoma, including most of Tulsa — was never legally dissolved by Congress and remains Indian country under the federal Major Crimes Act.
The decision strips Oklahoma of jurisdiction to prosecute enrolled tribal members for serious crimes committed on that land, transferring that authority exclusively to the federal government, and puts thousands of past state convictions in jeopardy while reshaping law enforcement across the entire eastern half of the state.
“Unlawful acts, performed long enough and with sufficient vigor, are never enough to amend the law. To hold otherwise would be to elevate the most brazen and longstanding injustices over the law, both rewarding wrong and failing those in the right.”
The majority's closing rejection of the argument that Oklahoma's century of illegal prosecutions should be allowed to effectively rewrite federal law.
How it got here: McGirt raised his reservation-jurisdiction claim in Oklahoma postconviction proceedings; the Oklahoma Court of Criminal Appeals rejected it; the Supreme Court granted certiorari to settle a conflict between Oklahoma courts and the Tenth Circuit.
The Case in Depth
What happened
Jimcy McGirt, an enrolled member of the Seminole Nation, was convicted by Oklahoma state courts in 1997 of three serious sexual offenses committed against a four-year-old girl on land that had historically been the Creek Nation's territory in northeastern Oklahoma. McGirt argued in postconviction proceedings that because he is an Indian and his crimes were committed in "Indian country" — specifically within the Creek Reservation — Oklahoma had no authority to try him, and only federal courts could do so under the Major Crimes Act.
The question before the Court
Did Congress ever formally abolish the Creek Nation's reservation in eastern Oklahoma, and if not, does that mean Oklahoma lacks the power to prosecute enrolled tribal members for serious crimes committed there?
The Court's answer
Yes — the Creek Reservation has never been dissolved by Congress and still exists as "Indian country" under the Major Crimes Act. Congress established the reservation through 19th-century treaties that promised the Creek a permanent home "forever set apart," and no subsequent statute ever used clear language abolishing it. Because a reservation retains its legal status until Congress explicitly withdraws it, a century of Oklahoma's state prosecutions on that land, the area's largely non-Indian demographics, and the dismantling of tribal governance during the allotment era do not amount to disestablishment.
That means Oklahoma lacked jurisdiction to prosecute McGirt. The Major Crimes Act reserves the prosecution of serious crimes by enrolled tribal members in Indian country exclusively for the federal government. McGirt's state conviction must therefore be reversed, and any new prosecution must proceed in federal court.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Thousands of Native American defendants convicted in Oklahoma state courts for crimes committed on Creek land may now challenge those convictions on jurisdictional grounds. Going forward, the federal government — not Oklahoma — must prosecute serious crimes by enrolled tribal members across a massive, densely populated swath of the state. Oklahoma, tribal governments, and federal prosecutors face an immediate challenge in realigning resources and jurisdiction.
What changes now
McGirt's state conviction is reversed. If the government chooses to retry him, the prosecution must proceed in federal court. Going forward, Oklahoma cannot prosecute enrolled tribal members for serious crimes committed on the Creek Reservation — that jurisdiction belongs exclusively to the federal government. Congress retains full power to adjust or supplement the statutory framework at any time, and the Court noted that Oklahoma and its tribes have successfully negotiated hundreds of intergovernmental agreements that can help manage the transition. Each of the remaining Four Civilized Tribes' reservations presents a separate legal question not resolved here.
What this does not decide
The ruling addresses only the federal criminal law question of whether the Creek lands are "Indian country" under the Major Crimes Act. It does not resolve how civil laws and regulations that borrow the § 1151 definition of Indian country will apply, does not determine the reservation status of the other Four Civilized Tribes, and does not decide the ultimate fate of pending state convictions or whether existing procedural rules will bar individual challenges.
Concurrences and dissents
Dissent — Justice Roberts
“Today, the Court holds that Oklahoma lacked jurisdiction to prosecute McGirt—on the improbable ground that, unbeknownst to anyone for the past century, a huge swathe of Oklahoma is actually a Creek Indian reservation, on which the State may not prosecute serious crimes committed by Indians like McGirt.”The dissent's opening salvo, framing the majority's holding as an extraordinary discovery that upends more than a century of practice.
Chief Justice Roberts argued the majority misapplied decades of precedent by examining each statute in isolation instead of using the full three-part contextual inquiry that Solem, Yankton Sioux, and Parker require. Applying that broader approach — weighing the cumulative effect of statutes that dismantled tribal courts, extinguished tribal title, curtailed tribal governance, and incorporated Creek members into the new state, combined with over a century of unchallenged Oklahoma jurisdiction and the area's overwhelmingly non-Indian demographics — Roberts concluded Congress plainly intended to and did disestablish the reservation before Oklahoma statehood.
Dissent — Justice Thomas
Justice Thomas agreed with the Chief Justice that the reservation was disestablished, but wrote separately to argue the Court lacked jurisdiction to hear the case at all. The Oklahoma Court of Criminal Appeals rested its decision on an adequate and independent state procedural ground — McGirt waived his MCA claim by failing to raise it on direct appeal — and under longstanding rules, the Supreme Court cannot disturb a state judgment that rests on such grounds, regardless of the importance of the underlying federal question.
How the Court got there
The legal reasoning, step by step
- The Major Crimes Act (MCA) — a federal law granting the federal government exclusive authority to prosecute enrolled tribal members for serious crimes in 'Indian country' — defines that term to include all land within an Indian reservation. The central legal question was therefore whether the Creek Nation's historical territory in eastern Oklahoma still qualifies as a reservation today.
- The Court began by confirming that Congress plainly established a Creek Reservation through a series of 19th-century treaties. Starting with the 1832 and 1833 treaties, the U.S. promised the Creek a 'permanent home, forever set apart,' in exchange for ceding their southeastern homelands. Subsequent treaties and dozens of federal statutes repeatedly referred to the 'Creek reservation' by name, leaving no doubt a formal reservation was created.
- Under Solem v. Bartlett (the Court's 1984 guide on this question), a reservation retains its legal status until Congress explicitly withdraws it — and only Congress can do that. States and courts cannot reduce or eliminate a reservation through their own actions or inactions, however long-standing. Disestablishment typically requires express language such as 'cession,' 'restored to the public domain,' or 'abolished.'
- Oklahoma argued that the 'allotment era' statutes of 1901–1908 — which broke up communal Creek land into individual plots, abolished tribal courts, curtailed tribal lawmaking, and declared the tribal government would expire in 1906 — together amounted to disestablishment. The Court rejected this: Congress never used explicit abolition language for the Creek, in sharp contrast to contemporaneous laws that expressly abolished the Ponca and Otoe reservations nearby. Allotment creates conditions for disestablishment; it does not accomplish it.
- Oklahoma also argued that more than a century of state court prosecutions and the region's 85–90% non-Indian demographics independently prove the reservation was dissolved. The Court rejected this as well. Extratextual evidence — historical practice, demographics, statements by officials — can at most help clarify genuinely ambiguous statutory language; it cannot override Congress's silence or substitute for a congressional act of disestablishment. Accepting Oklahoma's argument would let long-running injustices quietly rewrite federal law.
- Finally, the Court rejected Oklahoma's claim that the Oklahoma Enabling Act of 1906 created a special exemption from the MCA for eastern Oklahoma. That law simply sorted pending territorial cases between new state courts (for state-law matters) and new federal courts (for federal-law matters) at statehood; it did not grant Oklahoma authority to try Indians for MCA offenses on reservation land — a conclusion Oklahoma's own admitted errors in prosecuting allotment cases only underscored.
Doctrinal impact
Cases affected by this decision
Reaffirms Solem v. Bartlett (465 U.S. 463)
Reaffirmed that only Congress can disestablish a reservation, which retains its status until Congress explicitly says otherwise.
Limits Nebraska v. Parker (577 U. S. 481)
Clarified that the case's 'limited interpretive value' language for extratextual evidence states a general rule, not just a case-specific conclusion.