By NICHOLAS RICCARDI and WILL WEISSERT, Associated Press WASHINGTON (AP) — A federal judge on Saturday barred the administration of President Donald Trump from deportations under an 18th century law that Trump invoked just hours earlier asserting the United States was being invaded by a Venezuel an gang and that he had new powers to remove its members from the country. James E. Boasberg, chief judge for the U.S. District Court for the District of Columbia, said he needed to issue his order immediately because the government was already flying migrants it claimed were newly deportable under Trump’s proclamation to El Salvador and Honduras to be incarcerated there. El Salvador already agreed this week to take up to 300 migrants that the Trump administration designated as gang members. “I do not believe I can wait any longer and am required to act,” Boasberg said during a Saturday evening hearing in a lawsuit brought by the ACLU and Democracy Forward. “A brief delay in their removal does not cause the government any harm,” he added, noting they remain in government custody but ordering that any planes in the air be turned around. The ruling came hours after Trump claimed the Venezuelan gang Tren de Aragua was invading the United States and invoked the Alien Enemies Act of 1798, a sweeping wartime authority that allows the president broader leeway on policy and executive action to speed up mass deportations. President Donald Trump arrives on Air Force One at Palm Beach International Airport, Friday, March 14, 2025, in West Palm Beach, Fla. (AP Photo/Manuel Balce Ceneta) The act has only been used three times before in U.S. history, all during wars. Its most recent application was during World War II, when it was used to incarcerate Germans and Italians as well as for the mass internment of Japanese-American civilians. In a proclamation released just over an hour before Boasberg’s hearing, Trump contended that Tren de Aragua was effectively at war with the United States. “Over the years, Venezuelan national and local authorities have ceded ever-greater control over their territories to transnational criminal organizations, including TdA,” Trump’s statement reads. “The result is a hybrid criminal state that is perpetrating an invasion of and predatory incursion into the United States, and which poses a substantial danger to the United States.” The order could let the administration deport any migrant it identifies as a member of the gang without going through regular immigration proceedings, and also could remove other protections under criminal law for people the government targeted. The Tren de Aragua gang originated in a prison in the South American country and accompanied an exodus of millions of Venezuelans, the overwhelming majority of whom were seeking better living conditions after their nation’s economy came undone last decade. Trump and his allies have turned the gang into the face of the alleged threat posed by immigrants living in the U.S. illegally and formally designated it a “foreign terrorist organization” last month. Authorities in several countries have reported arrests of Tren de Aragua members, even as Venezuela’s government claims to have eliminated the criminal organization. The government said Trump actually signed the order Friday night. Immigration lawyers noticed the federal government suddenly moving to deport Venezuelans who they would not otherwise have the legal right to expel from the country, and scrambled to file lawsuits to block what they believed was a pending proclamation. Boasberg issued an initial order at 9:20 a.m. Saturday blocking the Trump administration from deporting five Venezuelans named as plaintiffs in the ACLU suit who were being detained by the government and believed they were about to be deported. The Trump administration appealed that order, contending that halting a presidential act before it has been announced would cripple the executive branch. If the order were allowed to stand, “district courts would have license to enjoin virtually any urgent national-security action just upon receipt of a complaint,” the Justice Department wrote in its appeal. Boasberg then scheduled the afternoon hearing on whether to expand his order to all people who could be targeted under Trump’s declaration. 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But Lee Gelernt of the ACLU noted the law has only been invoked three times before and contended that Trump didn’t have the authority to use it against a criminal gang rather than a recognized state. Boasberg said that precedent on the question seemed tricky but that the ACLU had a reasonable chance of success on those arguments, and so the order was merited. Boasberg halted deportations for those in custody for up to 14 days, and scheduled a Friday hearing in the case. The flurry of litigation shows the significance of Trump’s declaration, the latest step by the administration to expand presidential power. Ensign argued that, as part of its reaction to the Sept. 11, 2001 attack, Congress had given the president power to delegate “transnational” organizations threats on the level of recognized states. And Gelernt warned that the Trump administration could simply issue a new proclamation to use the Alien Enemies Act against another migrant gang, like MS-13, which has long been one of Trump’s favorite targets. Associated Press writer Regina Garcia Cano in Caracas, Venezuela, contributed to this report. ...read more read less