Mealey's (March 19, 2019, 1:05 PM EDT) -- WASHINGTON, D.C. — A Washington Indian tribe does not have to pay the state’s fuel tax on gasoline it hauls into the state to its reservation because subjecting the tribe to the tax would violate its treaty right to travel unburdened on public roads, the U.S. Supreme Court ruled March 19 in a 5-4 decision (Washington State Department of Licensing v. Cougar Den, Inc., No. 16-1498, U.S. Sup., 2019 U.S. LEXIS 2086 )....