What is Trump hiding from his staff against their wishes?

04:09

The Washington Post reports that Trump is using an unsecure phone to talk with Rudy Giuliani and others, posing a significant national security threat. Rick Stengel tells Ali Velshi that the calls could be monitored by not just Russia, but a half-dozen other nations. Glenn Kirschner says those calls pose a military risk for the U.S. Ali also discusses the calls with the Post's Greg Miller.