Federal Judge in Miami Strikes Down Noncitizen Voting Prosecution, Dealing Blow to Trump DOJ

A federal judge in Miami has dismissed a criminal case against a Florida woman accused of voting illegally as a noncitizen, ruling that the federal statute underpinning the charge exceeds Congress's constitutional authority. The decision, issued Thursday by US District Judge David Leibowitz, hands the Trump administration a significant legal setback as it ramps up enforcement of alleged election fraud in the run-up to November's midterm elections.

The case centered on Chelsea Cox, a Florida resident who was born in Jamaica and charged in October 2025 with casting a ballot in the 2020 presidential election despite not being a US citizen. Rather than resolving the case on its facts, Leibowitz examined whether the federal government had the power to bring the charge at all. He concluded it did not.

At the heart of the ruling is a structural question about American federalism. Leibowitz found that the US Constitution reserves the power to set voter qualifications exclusively to the individual states, not to the US Congress. The Constitution's Elections Clause, he reasoned, gives states the primary role in determining who may vote, a principle reinforced by the fact that every state already maintains its own citizenship requirement at the ballot box.

Because Florida has its own laws prohibiting noncitizens from voting, Leibowitz wrote, it falls to state prosecutors — not the Department of Justice — to pursue cases like Cox's. "Florida can and does," he observed, pointing to existing state statutes that cover the conduct his court was asked to punish under federal law.

The practical reach of the ruling is narrow. It applies only to Cox's case and does not bind judges in other jurisdictions, meaning it sets no nationwide precedent. Still, its significance may extend well beyond a single defendant. Roughly 45 similar federal cases remain pending across the country, and at least four other defendants have already raised the same constitutional objection, suggesting the issue could percolate through the courts in the months ahead.

The factual allegations against Cox span more than two decades. According to court filings, she entered the United States as a tourist in 1999, remained after her visa expired, and later used a fraudulent birth certificate from the US Virgin Islands — a US territory in the Caribbean — to obtain a Florida driver's licence and register to vote in 2012. That registration ultimately led to the 2020 ballot that formed the basis of the federal charge.

The broader enforcement campaign in which the case sits has drawn scrutiny. The Department of Justice has charged at least 60 people with the offence since President Donald Trump returned to office in January 2025. The push reflects Trump's longstanding and false claim that noncitizen voting cost him the 2020 election, an allegation he has frequently framed as part of a wider Democratic effort to dilute Republican support through illegal ballots.

Election experts and available data point in a different direction. Noncitizen voting is already illegal under state law, and instances of it are exceedingly rare. A Reuters review of 129 people charged with "voting by an alien" since 2021 found that none was accused of conspiring to sway an election, backing a particular candidate, or being paid to vote. Most of those charged turned out to be lawful permanent residents who had registered by mistake or on incorrect advice from an election worker or a government clerk.

That pattern raises questions about the proportionality of federal prosecutions, which can carry severe immigration consequences even where the underlying conduct appears inadvertent. In Cox's case, her lawyer, Bruce Udolf, welcomed the dismissal and expressed hope that authorities would not now seek to deport her. He cited her declining health conditions as a reason for leniency, underscoring how criminal election-fraud charges can cascade into life-altering immigration proceedings.

The timing of the ruling adds political weight. It arrives as the Trump administration intensifies its focus on election integrity ahead of the midterms, and as officials warn of potential chaos at polling places. Senior law enforcement figures, including Attorney General Todd Blanche and Homeland Security Secretary Markwayne Mullin, appeared at a September 30 news conference at the Justice Department to announce the arrest of 10 people for allegedly voting illegally in Minnesota — a signal that federal enforcement is accelerating rather than slowing.

Legal observers say the decision could complicate that strategy. If other judges find Leibowitz's constitutional reasoning persuasive, more of the pending federal cases could be dismissed on the same jurisdictional grounds, effectively pushing enforcement back to the states. States retain clear authority to prosecute noncitizen voting under their own laws, but state prosecutions vary widely in resources, priorities and willingness to pursue cases that federal authorities have championed.

The ruling also highlights a recurring tension in American election law: the line between federal and state power over the ballot. While Congress can regulate certain aspects of federal elections, the qualifications of voters have long been understood as a matter reserved to the states, subject to constitutional limits such as the prohibition on racial discrimination. Leibowitz's opinion leans heavily on that division of authority, casting the federal noncitizen voting statute as an intrusion into terrain the Constitution assigns to state governments.

For now, the immediate consequence is that Cox's federal prosecution is over. Whether the decision remains an isolated ruling or becomes the first ripple in a broader judicial rejection of federal noncitizen voting prosecutions will depend on how other courts — and ultimately appellate judges — treat the constitutional question Leibowitz has now put squarely on the record.