Warren Petersen, President of the Arizona Senate, et al., Petitioners v. Mi Familia Vota, et al.

Arizona legislative leaders ask the Supreme Court to review a Ninth Circuit decision blocking parts of the state's voter-registration and mail-voting rules. The dispute centers on whether federal voter-registration law or a prior consent decree (a court-approved agreement) prevents Arizona from requiring proof of citizenship on its state registration form and from canceling some registrations close to a federal election.

The petition has not been scheduled for oral argument. Arizona legislative leaders seek review of the Ninth Circuit's decision, while the questions ask whether federal law and a consent decree limit the state's requirements and its planned registration-cancellation program.

The case could affect applicants who use Arizona's state registration form, including people asked to provide documents proving citizenship or residence. It also concerns whether voters without proof of citizenship may vote by mail and how election officials check for possible noncitizens.

The case concerns Arizona's power to require citizenship and residence documents for its state voter-registration form. It also concerns a program to cancel registrations of noncitizens near federal elections.

Applicants using Arizona's state registration form could be asked for proof of citizenship or residence. Voters without citizenship proof may also be affected by mail-voting restrictions.

No oral argument is scheduled, and no decision window is set. The next step is likely a Court action on whether to hear the case or a scheduling move.