California set aside tens of millions to challenge Trump's executive actions in court. Here's how the Trump White House responded.

Republican legislators in Arizona are advancing a piece of legislation that would effectively make it impossible to prosecute ...

Soldiers from the U.S. Army 10th Mountain Division, a light infantry division based at Fort Drum, N.Y., are being deployed to ...

Arizona's Mark Kelly, Ruben Gallego and other Senate Democrats are all talk and no action to stop Trump from running ...

Tariffs probably won't pare back how much produce Arizona imports from Mexico. But they could still wreak havoc on what we put on our plates.

An agreement between Energy Fuels and the Navajo Nation includes limits on days and times uranium ore can be transported.

“EPA must move to swiftly and rigorously review and make determinations on pending projects and primacy applications to ...