SUPREME COURT GREENLIGHTS VOTER CHECKS: Justices Allow Trump Administration’s Citizenship Database to Be Used Ahead of Midterms
WASHINGTON — The Supreme Court on Friday handed the Trump administration a significant victory in its election-integrity efforts, allowing states and localities to use an expanded federal database to check registered voters’ citizenship status ahead of November’s midterm elections.
The 6-3 ruling temporarily blocked a lower-court decision that had restricted use of the revamped Systematic Alien Verification for Entitlements system, known as SAVE. The database can draw on Social Security numbers and other federal records and allows election officials to conduct large-scale citizenship checks of voter rolls. The court’s three liberal justices dissented.
The decision does not resolve the underlying lawsuit or determine that states may automatically remove every voter flagged by SAVE. Rather, it permits the federal government to make the expanded system available while litigation over its legality continues. The immediate impact on mass removals before the Nov. 3 election may also be constrained by a federal law generally restricting systematic voter-list maintenance within 90 days of a federal election.
The dispute centers on an overhaul of SAVE undertaken by the Department of Homeland Security following an executive order signed by President Trump in March 2025. SAVE had existed since 1986 and was traditionally used to verify immigration or citizenship status for government benefits and licenses. The administration expanded it to incorporate additional federal records, including Social Security Administration data, and to permit bulk searches by authorized government entities.
Several Republican-led states subsequently began comparing their voter-registration lists against the federal system. According to the Trump administration’s Supreme Court filing, the updated SAVE system had verified more than 65 million registered voters across 26 states as U.S. citizens while flagging 28,635 people on voter rolls as potential noncitizens. Those figures represent federal database matches rather than final determinations that every person flagged is ineligible to vote.
The administration argues that the system gives state election officials an important tool for identifying noncitizens who are legally barred from voting in federal elections.
Voting-rights and privacy groups have challenged the system, contending that the federal data can be outdated or inaccurate and that naturalized American citizens can consequently be incorrectly identified as noncitizens. The overall error rate of the modified SAVE system has not been publicly established.
The Supreme Court majority concluded that the challengers’ arguments against the federal government’s information-sharing arrangement are unlikely to succeed.
Under federal immigration law, “the Federal Government has an obligation to respond to requests from state and local election officials seeking to verify the citizenship of voters,” the court said. “The order below prevents the Federal Government from using the program it believes is best suited to the task.”
The justices added that the lower court’s restrictions, including limits affecting checks of individual voters, “inhibits the Federal Government’s efforts to assist state and local agencies in the proper administration of the midterm elections.”
The case began after the League of Women Voters, the Electronic Privacy Information Center and several individuals sued the Department of Homeland Security, the Social Security Administration and the Justice Department in September 2025. They argued that the administration unlawfully combined sensitive government records and created a system that could jeopardize both privacy and voting rights.
In June, U.S. District Judge Sparkle Sooknanan in Washington sided with the challengers and blocked the expanded system, concluding that the administration had improperly combined federal records containing unreliable citizenship information.
“All in all, the federal government has knowingly trampled on the privacy rights of American citizens in a manner that threatens the sacred right to vote,” Sooknanan wrote. “This court cannot stand idly by while that happens.”
The D.C. Circuit Court of Appeals, in a 2-1 decision earlier this month, declined to suspend Sooknanan’s ruling, prompting the Justice Department to seek emergency intervention from the Supreme Court.
Solicitor General D. John Sauer called the lower-court ruling “indefensible” and argued that it “threatens the integrity of upcoming elections.” The administration maintained that SAVE itself does not remove anyone from a voter roll; rather, it provides citizenship information to state officials, who are responsible for determining what action, if any, should follow.
“SAVE does not disqualify any voter; instead, it merely notifies the States whether the federal government can confirm citizenship,” Sauer wrote. “Thus, any voter injury is caused by the States, not by the federal government, and would not be redressed by the relief the court entered against the federal government.”
The challengers countered that “Congress has not authorized the federal government to create a master database of U.S. citizens,” arguing that the administration “has recklessly created an error-laden master citizenship database that endangers millions of Americans’ privacy and voting rights.”
Justice Ketanji Brown Jackson dissented from Friday’s ruling, joined by Justices Sonia Sotomayor and Elena Kagan. Jackson argued that the potential consequences for eligible voters outweighed the government’s interest in immediately expanding use of the system.
“[T]he harm caused by burdening or disenfranchising even a few lawful voters outweighs the nonexistent harm that the Government experiences when it is prevented from taking an action that it likely lacks the authority to take,” Jackson wrote.
The challengers also pointed to examples they say demonstrate the risk of erroneous matches. In filings cited by Reuters, a Travis County, Texas, election official reported that 25% of SAVE noncitizen matches examined there involved people who had already demonstrated U.S. citizenship, while reports from St. Louis County, Missouri, found errors in at least 81% of responses examined there. Texas, which intervened in support of the Trump administration, disputes broader claims that SAVE is unreliable.
Following Friday’s ruling, the plaintiffs called the decision “profoundly disappointing,” saying it places Americans “at risk of being unlawfully targeted by the administration’s unreliable voter purge database weeks before the midterm elections.”
They stressed, however, that the litigation is continuing and that Friday’s emergency order is not the final word on the legality of the expanded system.
The ruling comes less than six weeks before the Nov. 3 midterm elections, in which control of Congress is at stake. While the Constitution gives states primary responsibility for administering elections, the Trump administration has sought a larger federal role in providing information that states can use to verify voter eligibility.
For now, the practical effect of Friday’s decision is that the federal government may resume making the expanded SAVE system available for voter-citizenship checks while the courts continue considering the broader legal challenge.
