The plan for new border wall comes as unauthorized border crossings across the entire U.S. Southwest, including Arizona, are at record lows, according to a Customs and Border Protection news ...

The first Trump administration built long segments of steel wall on Arizona's border. Conservationists fear wildlife will suffer if work resumes.

President Trump issued a memorandum Friday authorizing the military to take control of federal lands along the southern border to combat illegal immigration and drug smuggling. “Our southern ...

Rugged mountain ranges in southeastern Arizona halted the march ... they say. Trail-cam images: A bobcat can pass through the border wall, but most larger species can't, study finds They believe ...