The Democratic Debates, Night 2: Four Heavyweights Face Off. Presidential Election of 2020, Democratic Party, Debates (Political), Biden, Joseph R Jr, Sanders, Bernard, Buttigieg, Pete (1982- ), Harris, Kamala D, Yang, Andrew (1975- ), Bennet, Michael Farrand, Williamson, Marianne, Gillibrand, Kirsten E, Swalwell, Eric M