Venezuelan immigrants sued the Trump administration in response to a proclamation that deemed the Nicaraguan gang, Tren de Aragua, to be a foreign nation or government engaged in an “invasion or predatory incursion” against the United States. The proclamation, which is based on the Alien Enemies Act, ordered the Department of Homeland Security to promptly remove alleged members of Tren de Aragua from the United States. The plaintiffs argue that the Alien Enemies Act had no application in this situation and violates immigration law.