Arizona v. Inter Tribal Council of Arizona, Inc. (U.S. Supreme Court)

A group of Arizona residents and a group of nonprofit organizations filed suit to enjoin Arizona’s Proposition 200, which required prospective voters to provide proof of U.S. citizenship in order to register to vote and cast ballots, even if they were using the Federal Form developed by the Election Assistance Commission. After both a Ninth Circuit panel and the en banc Ninth Circuit held that this proof-of-citizenship requirement violated the National Voter Registration Act of 1993 (NVRA), Arizona sought and secured certiorari. We filed an amicus brief on behalf of several members of Congress arguing that the proof-of-citizenship requirement was preempted by the NVRA with respect to, at the very least, applicants using the Federal Form. The Supreme Court affirmed the Ninth Circuit, holding that the NVRA precludes Arizona from requiring Federal Form applicants to submit information beyond that required by the form itself.