From Mexico to the mountains, Arizona’s hummingbirds are on the move. Here's when and how to spot them in Arizona.

Layers of red tape have stifled innovation in other states, but not Arizona. It has embraced the autonomous vehicle industry, ...

Trump gives border land to military, raising legal questions and signaling a new phase in U.S. immigration enforcement strategy.

The order would empower troops to detain people attempting to illegally enter the U.S. within the stretch of land, which was ...

President Donald Trump issued a memorandum Friday giving the U.S. military jurisdiction over federal lands at the southern ...