Clayvin Herrera poses for a picture on the plaza of the Supreme Court, Tuesday, Jan. 8, 2019, in Washington. The U.S. Supreme is reviewing a case in which Clayvin Herrera, a Crow tribal member and former tribal game warden from Montana, is asserting his right under a 150-year-old treaty with the U.S. government to hunt elk in the Bighorn National Forest in Wyoming. (AP Photo/Alex Brandon)