The Trump administration has invoked a 227-year-old law, the Alien Enemies Act, to target Tren de Aragua, a gang with its roots in the prisons of Venezuela. Who are they and how wide is their reach?

Tren de Aragua, a gang born out of a Venezuelan prison, is a loose network that doesn’t operate like groups typically considered terrorist organizations.

A federal judge on Saturday temporarily blocked any deportations that would occur under U.S. President Donald Trump's use of a little-used wartime law to expedite the expulsion of alleged members of the Venezuelan gang Tren de Aragua.

President Trump on Saturday invoked the Alien Enemies Act of 1798 to order the swift detention and deportation of all Venezuelan migrants suspected of being members of the Tren de Aragua prison gang,

Trump invoked the Alien Enemies Act against Tren de Aragua members. A federal judge later ordered the administration to turn around any planes that had already taken off.