The justices have agreed to revisit one of the most contested questions in American election law: how far a state can go to verify citizenship before letting someone register to vote.
The Court takes the case
The Supreme Court granted review Monday in a challenge to Arizona's documentary-proof-of-citizenship requirement for voter registration, the New York Times reported, agreeing to hear arguments in its next term. The move does not resolve the dispute — the justices will receive full briefing and hold oral argument before ruling, likely in 2027.
At issue is a 2022 Arizona law requiring registrants to provide documents — such as a passport, birth certificate or qualifying state ID — proving citizenship before their registration is processed.
What the law does
For three decades, Americans have been able to register using the federal "motor voter" form created by the National Voter Registration Act of 1993, which requires only a sworn attestation of citizenship — no supporting documents. Arizona's law goes further, conditioning registration, and for some applicants the ability to vote even in federal races, on physical proof. Supporters call it essential to keep noncitizens off the rolls; critics say it is a barrier that falls hardest on naturalized citizens, lower-income voters and others less likely to have the documents on hand.
A 2013 precedent in the background
This is not the justices' first encounter with Arizona on the issue. In Arizona v. Inter Tribal Council of Arizona (2013), the Court ruled 7-2 that the NVRA's command that states "accept and use" the federal form preempted an earlier Arizona effort to demand documentary proof from those using it. But that ruling left open questions — including whether states may require proof for their own state registration forms, or limit federally registered voters to federal-only ballots — that the 2022 law was designed to test.
What each side argues
Arizona and its supporters contend that states have a strong interest in the integrity of their voter rolls and that the NVRA does not strip them of authority to verify citizenship. Opponents — civil-rights groups and the challengers who prevailed in the lower courts, which blocked key parts of the law — argue it conflicts with the NVRA's guarantee that the federal form is a complete path to registration, and that a two-tier system functions as a barrier to eligible voters.
Why the stakes are high
A ruling for Arizona could embolden other states that have enacted or weighed similar requirements, accelerating a national trend; a ruling against it would leave such laws on shaky ground and reinforce the federal form's protections. For now, nothing is decided. The justices will hear the case next term — and their answer could redraw the rules of voter registration well beyond Arizona.
