The Supreme Court on Thursday ruled that a huge swath of the state of Oklahoma is Native American land for certain purposes, siding with a Native American man who had challenged his rape conviction by state authorities in the territory. The 5-4 decision, with an opinion authored by Justice Neil Gorsuch, endorsed the claim of the Muscogee (Creek) Nation to the land, which encompasses three million acres, including most of the city of Tulsa. The decision means that only federal authorities, no longer state prosecutor, can lodge charges against Native Americans who commit serious alleged crimes on that land, which...