The first session of the Threats to American Democracy Roundtable series focuses on the rise of political partisanship. The founders considered factions a grave threat to the new republic. We are now living their nightmare, politics as existential blood sport. Why and how did divisiveness and demagoguery triumph?  In this session, two of the world’s leading authorities on the subject discuss how America got here.  The Threats to American Democracy Roundtable Series explores various threats to American democracy.