Appeals Court Dismisses Challenge to Trump's Use of Obscure Deportation Law, Legality Undecided

The Fifth U.S. Circuit Court of Appeals recently determined that a legal challenge against former President Donald Trump's application of the Alien Enemies Act, intended for the deportation of individuals alleged to be members of the Tren de Aragua gang, was moot. This ruling leaves the fundamental legality of invoking the 18th-century statute without a definitive resolution.

The appellate court, based in New Orleans, concluded that the case had become irrelevant because all three Venezuelan individuals involved, whom the previous administration had identified as Tren de Aragua affiliates, had already been expelled from the United States using alternative immigration powers.

Enacted centuries ago, the Alien Enemies Act was last utilized by President Harry Truman in 1946 before its recent invocation by the Trump administration. This legislation grants the president authority, specifically during declared wartime or situations involving invasion by a foreign power or government, to apprehend and deport non-naturalized individuals associated with that hostile entity.

The former Trump administration contended that the activities of the Tren de Aragua gang constituted an "invasion or predatory incursion" as defined by the statute. It aimed to employ this authority as a component of its wider immigration strategy, which included expediting the removal of individuals suspected of gang affiliation.

Earlier, the Supreme Court had temporarily prevented the administration from deporting these detainees under the Alien Enemies Act as the legal proceedings unfolded. However, the high court refrained from issuing a judgment on whether President Trump's invocation of the statute was lawful, returning the matter to the Fifth Circuit for further consideration.

Legal Perspectives on the Dismissal

Bryce Poole, a senior legal fellow at Advancing American Freedom, characterized the appeals court's decision as a complex outcome for the former Trump administration. Advancing American Freedom is a conservative public policy organization established by former Vice President Mike Pence.

"It's a step forward because it vacates the prior ruling that said Trump's invocation was unlawful, leaving the President's AEA powers intact," Poole explained. "It's a step sideways because the court dodged the merits, so the AEA's legality remains a live question the Supreme Court will likely decide — probably in a different case like J.A.V. v. Trump, which has a certified class, so mootness won't apply."

Judicial Concurrences and Dissenting Views

Despite the court's decision not to address the substantive legal arguments, two judges expressed their opinion in concurring statements that the president's utilization of the law was appropriate.

Judge James Ho, an appointee of the Trump administration, penned a concurring opinion affirming the case's mootness. However, he also stated:

"I agree that this case is moot. But I also agree with the United States that we should address the merits questions directed to us by the Supreme Court — and affirm the President’s actions under the Alien Enemies Act and the Due Process Clause."

He further elaborated on judicial deference to presidential declarations:

"As I’ve also noted, judges are supposed to defer to a President’s declaration of a state of invasion — including the ones issued on January 20, 2025. And if courts must defer when the President treats illegal immigration as an invasion, see id., then a fortiori we must defer when it comes to the narrower question of an invasion by Tren de Aragua."

Conversely, Ilya Somin, a law professor at George Mason University and a scholar affiliated with the libertarian Cato Institute, expressed strong disagreement with Judge Ho's reasoning. He argued:

"If the president could create an 'invasion' simply by claiming that it exists, it would convert dangerous emergency powers that can only be used in extreme circumstances into blank checks the president can invoke any time he wants. That's contrary to the text of the AEA (which limits its use to situations where these circumstances actually exist) and to the text and original meaning of the Constitution."

Another appointee of the former Trump administration, Judge Andrew Oldham, similarly concurred with the view that the president's invocation of the Alien Enemies Act was legally defensible.

In a session involving all 17 active judges of the Fifth Circuit, the court rejected a petition from the plaintiffs' legal representatives to introduce new plaintiffs to replace those individuals who had been deported by the Trump administration.

Ultimately, the legal standing of former President Trump's use of the Alien Enemies Act remains unsettled following this dismissal. The court's actions are expected to postpone a potential definitive ruling from the Supreme Court on the matter.