Trump invoked the 1798 Alien Enemies Act to rapidly deport alleged members of the Tren de Aragua criminal organization. A federal judge blocked the law's application a day later.

Over 200 alleged members of the Venezuelan gang Tren de Aragua have been deported from the U.S. to El Salvador, where they were placed in a high-security prison. The deportation, sanctioned by President Trump using the Alien Enemies Act,

Tren de Aragua (Train of Aragua, or Aragua Train) has roots in Tocorón prison in Venezuela’s northern Aragua state, which the group’s leaders had transformed into a mini-city with a pool, restaurants and a zoo.