Why It Matters
A Supreme Court decision in this case could reshape election administration across the country before the 2028 presidential election, potentially allowing states to conduct large-scale voter roll reviews within days of federal elections — a practice currently restricted under federal law.
The outcome would also influence how states use federal database technology to flag potential noncitizen voters, a practice already underway in several Republican-led states, with implications for how election integrity measures are enforced at the state level.
What Happened
The U.S. Department of Justice formally asked the Supreme Court this week to take up a legal dispute pitting the Republican National Committee against a coalition of Democratic organizations and voting rights groups over a series of election laws in Arizona.
At the center of the dispute is whether Arizona’s voter citizenship verification requirements violate the National Voter Registration Act, a 1993 federal statute that limits when states may remove voters from their rolls. The law currently prohibits systematic voter roll purges within 90 days of a federal election.
The Ninth Circuit Court of Appeals previously ruled that Arizona’s law conflicts with the NVRA. The Justice Department is now asking the Supreme Court to reverse that ruling, arguing the appeals court decision strips states of flexibility to enforce their own voter eligibility requirements.
Arizona law requires residents to provide documentary proof of citizenship — such as a passport or birth certificate — to vote in state elections. Those who register using a federal form without providing documentation may only cast ballots in federal races. State election officials are also required to run the names of federal-only voters through a Department of Homeland Security verification program to check for potential noncitizens.
By the Numbers
- 90 days: The NVRA’s restriction window before federal elections during which systematic voter roll purges are prohibited.
- 1,600+: Voter registrations canceled in Virginia in August 2024 under a noncitizen purge ordered by then-Governor Glenn Youngkin — some of which affected U.S. citizens.
- 2028: The presidential election cycle by which a Supreme Court ruling in this case could take effect.
- 1993: The year Congress enacted the National Voter Registration Act, which governs registration procedures and roll maintenance.
The Competing Arguments
RNC Chairman Joe Gruters said in a statement that defending the Arizona law against legal challenge was “unacceptable,” adding that federal law is unambiguous that only U.S. citizens may vote in American elections.
The Justice Department contends that the Ninth Circuit’s ruling effectively eliminates the flexibility Congress intended to preserve for states enforcing their own voter qualifications.
Opponents of the law argue the 90-day restriction exists for a practical reason: large-scale database matching between voter rolls and government records produces errors, and voters need time to contest wrongful removals. Justin Levitt, a law professor at Loyola Marymount University and former Biden White House adviser, said that running two massive lists against each other inevitably generates mistakes — and that doing so days before an election leaves little time for eligible voters to correct the record.
The Democratic National Committee and Arizona Democratic Party argued in a brief that states may not bypass the congressional limits on systematic removals, which were designed to protect eligible voters from being wrongly stripped of their right to vote without recourse.
The SAVE System
A significant part of the debate centers on the Department of Homeland Security’s SAVE program — Systematic Alien Verification for Entitlements — which Arizona law mandates election officials use. Originally designed to verify whether individual noncitizens qualified for government benefits, the Trump administration has expanded the system’s capabilities so it can now cross-check millions of names at once against federal databases.
Multiple Republican-led states have begun uploading their full voter rolls into SAVE to search for potential noncitizens. Critics warn the system has already falsely flagged naturalized U.S. citizens, and that widespread use close to an election could leave voters with no meaningful opportunity to correct errors before casting a ballot.
This case connects to broader Republican efforts on election integrity, including the SAVE America Act — Trump’s signature elections bill that would mandate proof-of-citizenship requirements nationally but has stalled in Congress. A favorable Supreme Court ruling could advance similar policies at the state level without congressional action. For more on Republican efforts to shape the federal judiciary and counter progressive legal strategies, see our earlier coverage.
What’s Next
The Supreme Court must first decide whether to accept the case. If it does, oral arguments and a decision would likely come before the 2028 election cycle. The court has already weighed in on several politically charged cases this term, and this case would represent one of the most significant election law rulings in years if taken up. No timeline for the court’s decision on whether to grant certiorari has been announced.
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