Arizona and Sonora signed a memorandum of understanding, agreeing to tackle shared environmental challenges at the border.

Proposition 314 makes it a state crime to cross the border unlawfully, allows police to arrest and deport migrants.

Inside Balboa Park’s Museum of Us, a map of the Arizona-Sonora border stretches across a wall on the ground floor. Toe tags ...

Like his fellow Democrats in the Arizona Legislature, Seaman voted against Republican-sponsored border legislation this year. He did, however, sign on as cosponsor to a bill that would have ...