Arizona's voter registration numbers are up by nearly 17,000 since the last report in April. The Secretary of State's Office announced Wednesday that Arizona now has more than 3.25 million registered voters.

Arizona's voter registration numbers are down by nearly 11,500 since the last report in January. The Secretary of State's Office says the state has more than 3.23 million registered voters as of April 1.

A federal appeals court on Friday upheld a 2011 Arizona law designed by Republicans to slow the tide of people not registering with their party.

A federal appeals court has refused to reconsider a decision allowing residents of Kansas and Arizona to register to vote using a federal form without providing proof of their U.S. citizenship.

Arizona cannot require people to produce proof of citizenship before they register to vote, at least not for federal elections, a federal appellate court ruled Friday.

Six days a week at 3 p.m., high school senior Betzy Solis slips on her white Mi Familia Vota T-shirt, packs her purse with water bottles and fills her clipboard with voter registration cards before heading off to knock on doors.

Thousands of Pima County voters opened their mailboxes this election cycle to find a letter stating that records show they are not registered to vote, even when they are.

The O’Connor House and its partners are launching the Great Voter Challenge to increase voter registration by 10 percent across Arizona.

A federal appeals court extended its order allowing Kansas and Arizona residents to continue registering to vote using a federal form without having to show proof of citizenship.

Kansas and Arizona residents can continue to register to vote for now using a federal form without having to provide proof of citizenship, a federal appeals court ruled Thursday.