Georgetown University's Mo Elleithee, who hosted Mark Zuckerberg's recent speech on "free expression," and former Facebook advisor Dipayan Ghosh speak with Brian Stelter about Facebook's misinformation messes. "What the Russians did is exactly what Trump can do in 2020," Ghosh said, likening it to "2016 on steroids, where political campaigns in this country are given a free pass to splice and dice" voters and spread "political lies."