With Marines and National Guard in Los Angeles experts weigh-in on the limits of what they can do. As President Trump's immigration crackdown expands, some workers without legal authorization are being driven underground. And, a federal court of appeals in Manhattan will hear arguments today as part of Trump's legal efforts to have his criminal conviction overturned. Want more comprehensive analysis of the most important news of the day, plus a little fun? Subscribe to the Up First newsletter.Today's episode of Up First was edited by Gigi Douban, Rafael Nam, Emma Bowman, Lisa Thomson and Alice Woelfle. It was produced by Ziad Buchh, Nia Dumas and Christopher Thomas. We get engineering support from David Greenburg and our technical director is Carleigh Strange. Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy