Obama-nominated judge permanently blocks Trump citizenship-proof requirement for voter registration

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, June 24, 2026 
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A federal judge in Boston permanently barred the Trump administration from enforcing most of its first executive order on elections, ruling that the president lacks constitutional authority to require documentary proof of citizenship for voter registration or to punish states that count late-arriving mail ballots.

U.S. District Judge Denise Casper, chief judge in the District of Massachusetts and a nominee of former President Barack Obama, converted a preliminary injunction she issued roughly a year ago into a permanent ban, the New York Post reported. The ruling strips enforcement power from an order that sought to reshape how Americans register and vote in federal elections.

The blocked order carried three major provisions: requiring documentary proof of U.S. citizenship to register to vote, banning the counting of mail ballots that arrive after Election Day even if postmarked on time, and threatening to withhold federal funds from states that refused to comply. Judge Casper found that all three provisions exceeded presidential power and violated the separation of powers.

The constitutional argument, and who wins it

In her written ruling, Casper stated that the Constitution "does not grant the President any specific powers over elections." She agreed with the Democratic state attorneys general who brought the lawsuit that the Constitution reserves election authority to the states and to Congress, not to the executive branch.

As the Washington Examiner reported, Casper is the third federal judge to block the order. Separate courts in Washington, D.C., and Washington state have also struck down provisions of the same directive, making this a growing string of judicial defeats for the administration's election agenda.

The court rejected the administration's argument that the lawsuit was premature because the rules had not yet taken effect. Casper found the states had demonstrated a likelihood of success on the merits, and that the threat of withheld federal money gave them standing to challenge the order now.

A longer passage from the ruling, as Breitbart noted, laid out the constitutional boundary plainly:

"While the Constitution vests the President with executive Power and commands him to take Care that the Laws be faithfully executed, it does not grant the President any specific powers over elections."

That framing matters. The judge did not dispute the goal of verifying citizenship. She disputed the method, a unilateral executive order rather than legislation passed by Congress.

What the ruling does not say

Nothing in Casper's decision challenges the basic requirement that voters be U.S. citizens. The federal voter registration form already requires applicants to attest under penalty of perjury that they are citizens. Violating that attestation is a felony punishable by prison or deportation.

The question before the court was narrower: can the president, acting alone, impose a documentary proof-of-citizenship requirement on top of the existing attestation? Casper said no. That power belongs to Congress.

Nineteen Democratic state attorneys general filed the original lawsuit. California served as the lead plaintiff state. Just The News reported that the suit was filed in April, challenging the executive order signed in March 2025.

The same week, a separate federal judge blocked the Trump administration's voter verification system that combined Social Security data with citizenship records, a system already in use by 25 states. That ruling came from a Biden-appointed judge, adding another layer of judicial resistance to the administration's election-security push.

Democrats celebrate, and signal more fights ahead

New York Attorney General Letitia James framed the ruling as a defense of voting rights, saying in a statement:

"Generations of Americans fought tirelessly for the right to vote, and we honor their legacy by protecting that right against anyone who tries to undermine it."

California Attorney General Rob Bonta, whose office led the litigation, struck a more combative tone. He acknowledged the win but warned that the legal battles are far from over:

"While we are proud of this result, we are clear-eyed that President Trump's attacks on voting rights and our elections show no signs of slowing down. So let me be clear: we will keep fighting back every step of the way."

The White House pushed back. Spokeswoman Abigail Jackson told the Associated Press that the administration remains confident in its position:

"The President's executive order lawfully protects our elections, and we are confident that we will ultimately prevail in its implementation."

Whether the administration will appeal the permanent injunction remains unclear. Requests for comment to both the White House and the Department of Justice were not immediately returned.

Trump ties housing bill to voter citizenship fight

The ruling landed on the same day Trump escalated his pressure campaign on Congress. He abruptly canceled the expected signing of a bipartisan housing bill, declaring he would not sign any legislation until Congress passes his proof-of-citizenship requirement for voting.

That requirement is embodied in the SAVE America Act, which has already passed the House but stalled in the Senate. Trump has publicly advocated for eliminating the filibuster to force the bill through, a move that would mark a dramatic shift in Senate procedure and one that even some Senate Republicans have resisted on other fronts.

The legislative route matters now more than ever. With three federal judges blocking the executive order approach, the only viable path to a documentary proof-of-citizenship requirement runs through Capitol Hill. Newsmax noted that the ruling intensifies pressure on Congress to act, since courts have consistently struck down the same policy when imposed by executive fiat.

Trump has also signed a second executive order on elections, this one seeking to create a national voter list and limit mail balloting. That directive faces its own set of legal challenges. Media figures and Democratic officials have accused the president of trying to undermine elections through these orders, while the administration insists the measures protect election integrity.

The mail-ballot question heads to the Supreme Court

One piece of the election puzzle may soon be resolved at a higher level. The U.S. Supreme Court is expected to issue an opinion on whether mail ballots must arrive by Election Day. That ruling could immediately change the rules in 14 states that currently allow grace periods, ranging from days to weeks, for ballots postmarked by Election Day.

If the Court sides with the administration's position, it would accomplish through judicial review what Casper's ruling blocked by executive order. The distinction is procedural but constitutionally significant: the Supreme Court would be interpreting existing law, not validating unilateral presidential action.

Meanwhile, a federal judge in Washington, D.C., handling a separate challenge brought by civil rights groups and Democratic Party-aligned organizations, has already blocked the proof-of-citizenship requirement on the federal voter registration form. That same judge later barred Trump's defense secretary from requiring documentary proof of citizenship when military personnel register to vote or request ballots.

The pattern is consistent. Courts across the country have drawn the same line: the president can advocate for election reforms, but he cannot impose them by decree. The Constitution assigns that power elsewhere.

The administration's broader push to reshape federal governance through executive orders has met resistance on multiple fronts, from workforce restructuring to election policy. Each time, the central legal question is the same, whether the president has the authority to act alone, or whether the change requires Congress.

The real cost of the wrong approach

Here is what makes this ruling so frustrating for anyone who cares about election security. The underlying policy goal, verifying that only citizens register to vote, is popular, reasonable, and grounded in common sense. Polls consistently show broad public support for citizenship verification. The federal registration form already treats false attestation as a felony.

But the executive-order route was always legally fragile. The Constitution is clear about who sets election rules, and it is not the president acting alone. Three federal courts have now said so. The AP reported that an estimated 21.3 million eligible American voters lack easy access to documents proving citizenship, a figure from a 2025 University of Maryland study that opponents will continue to cite in court.

The SAVE America Act exists precisely to address this gap through proper legislative channels. It passed the House. It has the votes in concept, if not yet in practice. The Senate is the bottleneck, and that is where the fight belongs.

Judge Casper may have been nominated by Barack Obama, and the 19 attorneys general who sued are all Democrats. But the constitutional principle they invoked is not a partisan invention. Separation of powers protects everyone, including the next Republican Congress that wants to pass election-security legislation without a future Democratic president overriding it by executive order.

Trump's instinct on election integrity is right. The method was wrong. And now the clock is ticking for Congress to do its job, or own the consequences of leaving the door open.

About Sadie Smith

From campaign chaos to late-breaking developments, Sadie covers politics with speed and clarity. She focuses on what’s happening right now, how it got there, and why readers should care. The goal is simple: useful political coverage without the lectures.

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