Professor Kate Starbird on the dangers of 'participatory disinformation' and the roots of election denialism

"There's this sort of co-creation of disinformation" about the 2020 election, resulting in a "really powerful false narrative of voter fraud that's going to be very hard to correct," Kate Starbird says. Starbird, an associate professor at the University of Washington and a co-founder of the Center for an Informed Public, calls this "participatory disinformation" and says propaganda is most effective "when it's coming from people you trust." Brian Stelter also asks about Starbird's work studying "crisis informatics" and online rumors. To learn more about how CNN protects listener privacy, visit cnn.com/privacy