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.

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.

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 ...

This discussion comes amid a close race for the Pima County Sheriff position. In October, District 2 Supervisor Matt Heinz ...

County recorders and supervisors hold power over local election operations, and in many areas of Arizona ... the line of election denialism. A few counties were bucking the trend.

As of Wednesday evening, the Maricopa County Recorder ... “After our 15 counties complete that process, they send their canvass of elections up to the Arizona Secretary of State’s office.