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

For the first time in years, voters in Northwest Tucson appear to have elected a Democrat to the Arizona House of ...

The Associated Press declared Democrat Ruben Gallego the winner of Arizona's U.S. Senate seat after vote updates on Monday ...

The Pima County Board of Supervisors voted to ask the Arizona Attorney General and the U.S. Attorney for Arizona to ...