That would be the Muscogee Creek Nation. Despite its name, it does include the Ouchee Creek and other Creek bands, as well as the Muscogee. It does not rhyme with Tuskegee. And the casino has been around as long as I can remember, though until a decade or two back, it was just a bingo hall.
Oklahoma was still Indian Territory during the Civil War, and all the treaties that created it were declared null and void when all the tribes joined the Confederacy. After they were defeated (a process that wasn't complete until well after Appomattox), the land was apportioned. This did two things. It forced the idea of land ownership by individuals on the Indians, and after each got his or her "portion" of land, there was some left over for white settlers.
As a result, the former Indian Territory was one of the few states with no reservations--until now. I'm glad the Supreme Court ruled this way on this case, which is called McGirt v. Oklahoma. I want the state given back to the Five Civilized Tribes, and the other native nations. I trust them a hell of a lot more than Washington, D.C., especially with Bill Gates' Eugenics Vaccine in the pipeline.
Keep your Demopublicans and Republicrats. My capitals are Okmulgee and Tahlequah, and Lockheed, Pfizer and Google do not own them. Collectivist thinking may be all the rage these days. Even this place--once a bastion of rugged individualism--has gone tribal as hell. Well, individualism, individual rights, and individual merit is the thing that can destroy the divide and conquer tactics being used against We, the People. But if even the former rugged individualists here are bound and determined to help our enemies win by embracing the self-defeating siren song of tribalism, I'll throw in with the Creeks, Cherokees and Osage in a heartbeat. At least those tribes have prior claims and legal standing.
Before this is over, you may all be wishing you were born where I was born.