Donald Trump confirmed on Monday he plans to declare a national emergency and deploy the military to enact mass deportations when he returns to office. The ACLU has filed a lawsuit against Immigration and Customs Enforcement, seeking more information on Trump’s plans, including ICE’s use of privately chartered flights. The ACLU’s director warned of an unprecedented attack on immigrants, writing, “As we ready litigation and create firewalls for freedom across blue states, we must also sound the alarm that what’s on the horizon will change the very nature of American life for tens of millions of Americans.”