I don't recall if the Supreme Court was ever involved, but it has been litigated a number of times in high Federal courts, including at least one where Neil Gorsuch was the judge. His decision then was the same as this time.
Anyway, the Supreme Court has now ruled that way, which makes it pretty firm. When Oklahoma became a state, Congress didn't make any changes to the treaty, so it stands as it was before statehood.
Anyway, the Supreme Court has now ruled that way, which makes it pretty firm. When Oklahoma became a state, Congress didn't make any changes to the treaty, so it stands as it was before statehood.