President Trump asked Wednesday morning when it would be "appropriate to challenge [NBC's] License." But NBC's main network doesn't have a government license, and Trump doesn't have the power to directly take away the licenses that do exist — for the local stations that run its content.
Why it matters: Trump has regularly attacked the press, and his threat here is serious: to try and take a broadcast network off the air because he doesn't like its recent stories. It's a tactic that echoes Richard Nixon, who targeted licenses held by the Washington Post. But it's legally more complicated than the president's tweet makes it seem.