Federal judge blocks Trump proof-of-citizenship voting order

U.S. District Judge Denise Casper in Boston permanently blocked most provisions of President Donald Trump’s executive order that would have required documentary proof of U.S. citizenship for federal voter registration.

The ruling converts an earlier preliminary block into a permanent injunction. It sharply deepens the constitutional fight over who has the power to set federal election rules.

Casper said that authority belongs to the states and Congress, not the president. The challenged changes had not yet taken effect.

The lawsuit was brought by Democratic state attorneys general.

What the court blocked

The core provision at issue was the order’s documentary proof-of-citizenship requirement for registering to vote in federal elections.

Reporting from AP and The Guardian said Casper’s decision also kept in place a broad bar on most of the challenged provisions in the order. The practical effect is that the administration cannot enforce the citizenship-document requirement in its current form.

The ruling matters because proof-of-citizenship rules can affect eligible voters who do not have a passport, birth certificate, or another document readily available.

How the case got here

Trump signed the executive order on elections on March 25, 2025, as part of a broader push for stricter federal voting rules.

Casper had already issued a preliminary block on key provisions on June 13, 2025. Wednesday’s ruling made that protection permanent for the challenged parts of the order.

The White House later published the order in the Federal Register, but the blocked changes still never went into force.

The legal fight

The case centers on separation of powers and the structure of federal election law.

Casper’s reasoning goes to the heart of the administration’s effort: whether a president can unilaterally impose voter-registration rules for federal elections.

The ruling also reflects a long-running dispute over proof-of-citizenship requirements. Supporters say such rules strengthen election integrity. Opponents say they can burden eligible voters and create barriers for people who lack easy access to documents.

Broader election politics

Trump has also pushed the SAVE America Act, which includes a similar proof-of-citizenship requirement.

That makes the Boston ruling part of a wider legal and political battle over how far the administration can go in tightening election rules through executive action.

The case also adds to a broader set of legal fights over Trump’s election-related directives.

What happens next

The administration can appeal the permanent injunction and could seek a stay.

Related litigation over other election directives may continue, and Congress still has a separate legislative path if it wants to pursue a citizenship-proof requirement.

For now, the Boston ruling leaves the challenged provisions of Trump’s order unenforceable against federal voter registration.