Only six of the remaining 12 candidates qualified for Tuesday's debate. That includes former vice president Joe Biden, former mayor of South Bend, Ind., Pete Buttigieg, Minnesota Sen. Amy Klobuchar, Vermont Sen. Bernie Sanders, billionaire activist and businessman Tom Steyer, and Massachusetts Sen. Elizabeth Warren.
CNN and the Des Moines Register will host the debate from Drake University in Des Moines, Iowa. It starts at 8 p.m. CT and is scheduled to run for two hours. Moderators will be CNN's Wolf Blitzer and Abby Phillip and Brianne Pfannenstiel, the Des Moines Register’s chief politics reporter.