The U.S. deported hundreds of immigrants after President Donald Trump invoked the Alien Enemies Act (AEA) for the first time since World War II, using the sweeping powers of a centuries-old wartime law to target alleged members of a Venezuelan gang. The deportations over the weekend came as a federal judge issued an order temporarily barring them. MSNBC's Legal Analyst Katie Phang breaks down the history behind the law and what you should know. For more context and news coverage of the most important stories of our day click here: msnbc.com » Subscribe to MSNBC: youtube.com/msnbc » Subscribe to MSNBC on TikTok tiktok.com/@msnbc » Subscribe to MSNBC on Instagram instagram.com/msnbc Download our new MSNBC app for the latest breaking news and daily headlines at a glance: msnbc.com/information/download-msnbc-app-n1241692 Follow MSNBC Show Blogs MaddowBlog: msnbc.com/maddowblog ReidOut Blog: msnbc.com...