The Trump administration’s plan for dealing with worsening water shortages along the Colorado River is encountering strong opposition from Arizona’s leaders, who are warning they could sue to challenge mandatory water cutbacks that they say would harm their state. A legal fight could end up before the U.S. Supreme Court and further complicate efforts by seven Western states to agree on how to share water from the shrinking river and its reservoirs, which have fallen to record low levels. Arizona laid out its objections in a sharply worded letter to the federal government last week. It said the Trump administration’s 10-year plan doesn’t adhere to the Colorado River Compact, the 1922 agreement that originally divided the water among the states.

Other Colorado River management news:

• WyoFile: Colorado River crisis threatens crops, not Wyoming’s dam plans, experts say
• Cowboy State Daily (Cheyenne, Wyo): Hageman: California ‘failed all of us’ and made Colorado River water crisis worse
• KNPR (Las Vegas): The Fort Mojave Indian Tribe and the fight for the future of the Colorado River
• Colorado Politics (Denver): Colorado River crisis: Lake Mead, Lake Powell inch closer to ‘dead pool’
• Phoenix Business Journal: Arizona water officials challenge federal flow reductions as catastrophic cuts loom
• The New York Times: Nation’s largest reservoirs are drying up, threatening life in the Southwest
• The New York Times: Rafting through the Grand Canyon on a depleting Colorado River
• The Washington Post: Opinion: Don’t drain the Colorado River. Create water instead.