Former Vice President Joe Biden made big news, committing to have a woman as his running mate. Vermont Sen. Bernie Sanders said it would be his "strong tendency." Biden and Sanders started Sunday night's debate with an elbow bump and responded to the coronavirus crisis. They got into detailed arguments over their records on a range of issues, from bankruptcy to immigration.This episode: political reporter Danielle Kurtzleben, political correspondent Asma Khalid, and national political correspondent Mara Liasson.