Supreme Court divided on Navajo Nation's water rights case

The Supreme Court heard arguments in a case involving the Navajo Nation's request for water from the drought-stricken Colorado River. States and water districts urged the court to rule against the tribe, while the Navajo Nation argued for an assessment of their water needs. The federal government warned that siding with the tribe could lead to lawsuits from other tribes. The case centers on two treaties signed in 1849 and 1868, which the Navajo Nation says promise a sufficient supply of water. A decision is expected by the end of June.