Julian Zelizer, professor of history and public affairs at Princeton University, CNN political analyst, NPR contributor, and author of several books, and Karen Greenberg, director of the Center on National Security at Fordham Law, the author of several books, discuss the new book they co-edited, Our Nation at Risk: Election Integrity as a National Security Issue(NYU Press, 2024), in which experts weigh in on the risks to national security posed by election insecurity.