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 ...

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

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 ...

Justice Samuel Alito has slammed the door on overeager Republicans’ hopes for a Trump-packed Supreme Court.

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

Here's a look at the various candidates who are running for one of Arizona's nine congressional seats this Election Day.

Democrat Ruben Gallego's lead over Republican Kari Lake remained narrow, but steady in counting the day after the election.

Their current ranges run into the border wall fence demarcating the U.S.-Mexico border. Trump victory raises questions about Justice Department probe into Phoenix police Arizona and Sonora sign ...