News Supreme Court rules against Navajo Nation in Colorado River water claims case June 23, 2023Arlyssa D. Becenti and Shaun McKinnon, USA TODAY NETWORKComments Off on Supreme Court rules against Navajo Nation in Colorado River water claims case In a 5-4 decision, the court said the U.S. is not required to assess the water needs of the Navajo Nation and develop a plan to meet those needs.