The Supreme Court cleared the way Friday for the Trump administration to resume using an expanded federal citizenship verification system as states prepare for the November midterm elections. The Justices granted the Justice Department’s request to pause a lower court ruling that had restricted the government’s use of the SAVE voter database for broad citizenship checks involving voter records.
The September 25 decision came on a six-to-three vote, with Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson dissenting. CBS News reports that the ruling gives the administration emergency relief while litigation over the legality of the expanded system continues. The decision does not represent a final resolution of the underlying lawsuit over the database and federal privacy law.
The majority concluded that the federal government was likely to succeed in challenging the lower court ruling and said federal immigration law authorizes the Department of Homeland Security to respond to state and local requests for citizenship verification. In language included in the original reporting, the majority wrote, “The District Court’s order thus inhibits the Federal Government’s efforts to assist state and local agencies in the proper administration of the midterm elections. Under these circumstances, the equities weigh in favor of a stay,” according to the Supreme Court docket and reporting from CBS News.
The SAVE voter database sits at the center of a larger legal dispute over how federal agencies can use personal information when assisting states with election administration. SAVE stands for Systematic Alien Verification for Entitlements. According to Reuters, the Department of Homeland Security redesigned the existing system in 2025 so users could perform larger searches and use Social Security numbers when checking citizenship information. The system had previously been used primarily to help agencies verify immigration or citizenship status in connection with government programs and benefits.
That expansion was challenged by the League of Women Voters, the Electronic Privacy Information Center and other plaintiffs. According to CBS News, U.S. District Judge Sparkle Sooknanan ruled in June that the modified system violated federal laws governing privacy, Social Security information, and administrative procedure. The judge found that agencies had combined sensitive information from multiple government databases and concluded that inaccurate citizenship information created a risk that eligible U.S. citizens could be incorrectly identified as noncitizens.
The administration disputes that assessment. In filings summarized by CBS News, Justice Department attorneys argued that SAVE itself does not remove anyone from a voter roll. Instead, the government said the system provides citizenship verification information to state officials, who remain responsible for deciding how that information is used under applicable election laws. The administration also argued that federal law permits information sharing between agencies for citizenship verification purposes.
Critics of the SAVE voter database have raised concerns about whether outdated government records could incorrectly flag naturalized citizens. Reuters reported that plaintiffs challenging the program cited a Travis County, Texas, election official who said that 25 percent of the system’s noncitizen matches there involved people who had already established U.S. citizenship. The plaintiffs also cited reports of a substantially higher error rate involving responses reviewed in St. Louis County, Missouri. Those figures were presented by the challengers in court, while Texas has disputed broader claims that the system is unreliable. The modified system’s overall error rate has not been made public, according to Reuters.
Even with Friday’s Supreme Court ruling, the SAVE voter database may have a limited effect on large-scale voter roll removals before the November election. The Justice Department’s National Voter Registration Act guidance states that programs designed to systematically remove ineligible voters generally must be completed no later than 90 days before a federal election. The restriction covers large computerized data matching programs, although federal law contains exceptions for certain individualized removals and corrections.
The debate is unfolding against longstanding disagreement over the scope of noncitizen registration and voting. Research collected by the Brennan Center for Justice has concluded that noncitizen voting is extremely rare. State investigations have also identified attempted registrations in some cases. A 2022 review by the Georgia Secretary of State identified 1,634 people whose citizenship could not be verified after they attempted to register, but state officials said those individuals were placed in pending status and did not cast ballots.
The administration has maintained that stronger federal verification tools can help states identify potentially ineligible registrations, while voting rights and privacy groups argue that inaccurate data can place lawful voters at risk. The Supreme Court’s ruling temporarily changes which side controls the SAVE voter database while the appeal moves forward, but it leaves the broader legal fight over federal authority, personal data, and voter verification unresolved.
