(January 8, 2018, 4:20 PM EST) -- WASHINGTON, D.C. — The U.S. Supreme Court on Jan. 8 heard arguments by the United States, Texas, Colorado and New Mexico about under what terms the federal government should be allowed to intervene in a tri-state water dispute involving the Rio Grande River and whether it should be as a party or as amicus curiae (Texas v. New Mexico, et al., No. 141, Original, U.S. Sup.)....