Twelve candidates debated for three hours last night, so we can’t blame you if it was hard to keep up. CNN fact checks the first Democratic debate on June 26 in Miami. The top six contenders for the Democratic nomination gathered Wednesday night for (what feels like) the 7,000th primary debate of the 2020 cycle. Security guards remove protesters from the debate stage. Here is a look at some of the biggest moments. Twelve candidates debated for three hours last night, so we can’t blame you if it was hard to keep up. CBS News moderators got slammed for failing to keep Tuesday night’s Democratic primary debate on track, as the event descended into chaos. The top six candidates for the Democratic presidential nomination gathered on a debate stage Wednesday night, just days before the critical Nevada caucuses. February 19 was the ninth Democratic debate and featured six candidates, including Bloomberg appearing in a debate for the first time. Before Tuesday’s Democratic primary debate, we asked political debate coaches and experts to tell us what each candidate needed to do to have a good night. Getty Images. Here is a look at some of the biggest moments. It was the tension between Senator Bernie Sanders and Elizabeth Warren that dominated the seventh Democratic debate Tuesday night, following a report that Sanders had told Warren in a … A debate-stage scrap between Michael Bloomberg and Elizabeth Warren spilled onto the Democratic campaign trail on Thursday as the former New York mayor sought to move past his rocky debate … It was an intense debate… We're checking claims made by the 10 candidates, including Sen. Elizabeth Warren, Beto O'Rourke and Sen. Cory Booker.