ACLU files suit seeking to block President Trump’s birthright citizenship limits, citing executive-branch action

President Donald Trump’s administration has faced a fresh legal challenge over its attempt to restrict birthright citizenship, after the American Civil Liberties Union sued in federal court to block enforcement of the policy, according to The Hill. The ACLU said it is asking a judge to rule that the administration cannot use a new executive-branch action to deny citizenship that it contends would otherwise be covered under existing constitutional and legal frameworks.

The dispute centers on the administration’s stated effort to end “birth tourism” and protect what the White House describes as the meaning and value of American citizenship. In a fact sheet posted by the White House, the administration said Trump signed two executive orders addressing birth tourism and citizenship following Trump v. Barbara, while describing the policy as a change in how citizenship questions tied to birthplace are handled.

The Hill reported that the ACLU’s filing is its first effort aimed at this new attempt to narrow who can receive citizenship based on being born in the United States. The complaint seeks federal judicial review, with the ACLU asking the court to stop the administration from implementing the approach through executive order rather than new legislation or other processes it argues are required for such a change.

The administration’s legal theory, as reflected in its public materials, is framed around preserving the value of citizenship and limiting cases it characterizes as seeking benefits through travel for births. The ACLU’s court request, by contrast, relies on the argument that citizenship at birth is governed by longstanding constitutional principles and that an executive order cannot lawfully override them, The Hill reported.

The case also comes in the context of the Supreme Court’s prior consideration of birthright citizenship issues, which The Hill tied to the administration’s stated rationale for its Day 1 attempt and subsequent actions. The ACLU, in seeking to prevent the latest move from taking effect, is asking the court to treat the new executive attempt as legally defective and to halt any practical impact on children who would otherwise have been covered, according to the report.

If the federal court issues an order, it could affect how agencies handle citizenship determinations in the interim and shape the timeline for further litigation. The immediate practical effect would be to determine whether the administration’s approach is paused while the merits are litigated, or whether the policy continues while the case proceeds.

The next steps depend on the pace of federal briefing and whether the court takes up any expedited request for immediate relief. Further filings would likely address jurisdiction, standing, and the relationship between executive-branch authority and the constitutional citizenship question at the heart of the dispute.