In a landmark legal decision with sweeping implications, the U.S. Supreme Court has allowed the Trump administration to invoke the 1798 Alien Enemies Act to expedite deportations of migrants accused of gang affiliations—despite the country not being in a state of war.
The unsigned ruling, delivered Monday, temporarily lifts a lower court’s injunction and permits deportations to proceed while legal challenges continue in federal courts. The case involves a group of Venezuelan men accused of ties to the transnational criminal gang Tren de Aragua, and could reshape the limits of presidential power in immigration enforcement.
The Alien Enemies Act—originally enacted for use during times of war or invasion—was invoked by Donald Trump on March 15, allowing for the detention and deportation of foreign nationals deemed national security threats. Critics argue the 226-year-old statute was never intended for peacetime use, especially against migrants from nations with whom the U.S. is not in armed conflict.
Despite siding with the Trump administration, the Supreme Court added a key procedural safeguard: all targeted migrants must be given notice and time to seek habeas corpus relief before removal.
“The notice must be afforded within a reasonable time and in such a manner as will allow them to actually seek habeas relief… before such removal occurs,” the court stated. The ruling stems from an emergency appeal filed by Trump’s legal team, after U.S. District Judge James Boasberg issued a temporary block on the deportations, citing constitutional concerns. Boasberg’s order responded to a lawsuit from the American Civil Liberties Union (ACLU), filed on behalf of five Venezuelan men and others who may be affected.
The plaintiffs argue the President overstepped his authority, asserting the Alien Enemies Act can only be triggered during an officially declared war or invasion—conditions that do not apply to Venezuela.
Despite the judge’s verbal instruction to halt deportation flights, two planes had reportedly already departed the U.S. carrying 238 men to El Salvador, where they were allegedly transferred to that country’s Terrorism Confinement Center.
The Justice Department defended the action, stating the deportations occurred before the court’s written order was finalized.
Legal scholars and civil liberties advocates warn that the ruling opens the door for expansive use of wartime executive powers in peacetime immigration enforcement, potentially blurring constitutional boundaries.
“This is a historic use of a rarely invoked law,” said one constitutional expert. “It raises serious concerns about unchecked presidential power in the name of national security.”
The ruling comes during a heated election season where immigration is a defining issue, and it may embolden future presidents to test the limits of executive authority.
While the case will continue in lower courts, the Supreme Court’s interim decision sets a powerful precedent—and a potential redefinition of presidential power in times of political and social unrest.