The polity that is Oklahoma

The Supreme Court on Thursday ruled that nearly half of Oklahoma falls within an Indian reservation, a decision that could reshape the criminal-justice system by preventing state authorities from prosecuting offenses there that involve Native Americans.

The 5-to-4 decision, potentially one of the most consequential legal victories for Native Americans in decades, could have far-reaching implications for the 1.8 million people who live across what is now deemed “Indian Country” by the high court. The lands include much of Tulsa, Oklahoma’s second-biggest city.

The case was steeped in the United States government’s long history of brutal removals and broken treaties with Indigenous tribes, and grappled with whether lands of the Muscogee (Creek) Nation had remained a reservation after Oklahoma became a state.

Here is the full NYT article.  Do those people now live under some kind of joint sovereignty?