Why Biden has to “right the ship” during third Democratic debate

Democratic front-runners Joe Biden and Elizabeth Warren will face off for the first time in a presidential debate Thursday night. Ten of the 2020 candidates will take the stage in Houston for the third Democratic presidential debate, which will highlight competing visions for the party’s direction. Two new CBS News contributors – Marco Rubio’s former campaign manager Terry Sullivan, and Hillary Clinton’s former campaign manager Robby Mook – join “CBS This Morning” to discuss the upcoming debate. Source