Yale philosophy professor Jason Stanley says that the "formula for fascism" is "surprisingly simple." Stanley, who spent the last decade studying fascist propaganda, says that all right-wing autocrats follow a similar playbook: evoke a lost, mythic past; sow divisions; attack the truth. We'll talk to Stanley about his new book "How Fascism Works: The Politics of Us and Them" and about the parallels he sees between President Trump's rhetoric and that of past dictators.