The Third Democratic Debate. O'Rourke, Beto, Sanders, Bernard, Biden, Joseph R Jr, Harris, Kamala D, Yang, Andrew (1975- ), Warren, Elizabeth, Booker, Cory A, Castro, Julian, Klobuchar, Amy, Buttigieg, Pete (1982- ), Democratic National Committee, Democratic Party (Italy), Debates (Academic), Democratic Party, Houston (Tex)