"In our foreign policy, for at least half a century, we have been spectacularly blind to the power of tribal politics," says Amy Chua, author of "Political Tribes: Group Instinct and the Fate of Nations." What does this mean in 2019? How can Americans move past tribalism? Don't miss this conversation with Chua and Bard College's Walter Russell Mead, moderated by Bard's Roger Berkowitz.