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

Some races, such as the 6th Congressional District battle between incumbent Juan Ciscomani and challenger Kirsten Engel, remain exceptionally close.

Polling locations in Arizona will be open from 6 a.m. until 7 p.m. on Election Day, according to the Secretary of State's ...

Arizona remains too close to call in early results, but the former president picked up wins in other swing states.

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

Arizona saw a relatively smooth day of voting as of Tuesday afternoon, save for technical issues and long lines in the northeastern corner of the state. Officials statewide were prepared for a ...

Authorities investigated false bomb threats throughout the state on Election Day, which the FBI said appeared to originate from Russian email domains.

Arizona saw a relatively smooth day of voting Tuesday, save for technical issues and long lines in the northeastern corner of the state. Officials statewide were prepared for a busy day at voting ...

You can check your registration status online via the Arizona Voter Information Portal. If you live in Maricopa County ... populous Maricopa and Pima counties, have a two-page ballot this ...