Democratic presidential candidates (L-R) Rep. Tulsi Gabbard (D-HI), billionaire Tom Steyer, Sen. Cory Booker (D-NJ), Sen. Kamala Harris (D-CA), Sen. Bernie Sanders (I-VT), former Vice President Joe Biden, Sen. Elizabeth Warren (D-MA), South Bend, Indiana Mayor Pete Buttigieg, former tech executive Andrew Yang, former Texas congressman Beto O'Rourke, Sen. Amy Klobuchar (D-MN), and former housing secretary Julian Castro on stage during the Democratic Presidential Debate at Otterbein University on October 15, 2019 in Westerville, Ohio. A record 12 presidential hopefuls are participating in the debate hosted by CNN and The New York Times.