A judge tells the Trump administration to produce documents and answer questions about the man they mistakenly deported to a prison in El Salvador, and refuse to bring back. Plus, Mark Zuckerberg on the witness stand, in a case that could reshape WhatsApp and Instagram, and how Zuckerberg's newfound friendship with the President could reshape the case, Kara Swisher joins AC360°. Learn more about your ad choices. Visit podcastchoices.com/adchoices