ACLU Comment on Federal Appeals Court Ruling in Alien Enemies Act Challenge 

Affiliate: ACLU of Texas
August 13, 2026 5:30 pm

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NEW ORLEANS — The full Fifth Circuit Court of Appeals in New Orleans today dismissed W.M.M. v. Trump, a case challenging President Trump’s invocation of the Alien Enemies Act. The court ruled the case was moot because plaintiffs have since been removed under immigration laws, not the Alien Enemies Act. The court did not rule on the merits of the lawsuit.

The ruling stems from a case filed by the American Civil Liberties Union and the ACLU of Texas challenging the president’s use of this centuries-old wartime act in peacetime.

The Supreme Court previously blocked the Trump administration from using the Alien Enemies Act to remove Venezuelans who were being detained in northern Texas and told the Fifth Circuit to expedite the appeal, while keeping a stay in place. In September 2025, a three-judge panel of the Fifth Circuit rejected the administration’s assertion that the wartime authority’s invocation was lawful because an “invasion or a predatory incursion has occurred.” The Trump administration then sought a hearing before the full appeals court, which heard the case in January 2026.

The ACLU has other legal challenges to the Alien Enemies Act ongoing throughout the country.

The following is reaction to today’s Fifth Circuit ruling:

“The Supreme Court's injunction barring use of the Alien Enemies Act remains in place, which is essential because there are still people at risk of being wrongly removed under the act without due process. The Fifth Circuit decision also doesn’t change the fact that courts have overwhelmingly held that the use of this wartime authority during peacetime is unlawful,” said ACLU attorney Lee Gelernt, who argued the case.

The ruling is here.


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