Donald Trump gained ground in all four counties on the Arizona-Mexico border. Here's where his margin improved the most.

Arizona voters are set to decide whether to let local police arrest migrants suspected of illegally entering the state from ...

That led to the TV images of flows of migrants finding the gaps and holes in the border wall and then surrendering to Border ...

Proposition 314, known as the "Secure the Border Act", seeks to prevent illegal border crossings through Mexico's six ports ...

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

A completed wall would send a strong message that people wanting to come to the U.S. must make a legal application--and wait their turn.

Gallego's win is the fourth straight for Democrats after decades of defeats and comes in a disappointing cycle for the party ...

President-elect Donald Trump made the border and immigration a key focus of his campaign, and promised to conduct mass ...

Communities like Nogales are again in the spotlight with Trump’s re-election, and his new promise to carry out what would be ...

Democrat Ruben Gallego held a sizable lead over Republican Kari Lake late election night in Arizona’s U.S. Senate race.

Voters also nixed a proposal to reduce the wages of workers who earn tips and decided to continue holding elections to retain ...

A race that began as a potential historic three-way contest ends as a stark choice between Kari Lake and Ruben Gallego, two ...