What to look for in the Democratic debate
Media playback is unsupported on your device

US election 2020: What to look for in the third Democratic debate

Biden, Warren, Sanders, Harris - for the first time all the Democratic front-runners will share the spotlight. The BBC's Anthony Zurcher explains how that can change the dynamics.

Edited by Shrai Popat.

  • 12 Sep 2019
Go to next video: The best one-liners from the Democratic debate