Senate amends impeachment trial rules, defers on witnesses

The Senate impeachment trial of President Trump got underway on Capitol Hill Tuesday. The first day of proceedings involved hours of debate over the trial rules Senate Majority Leader Mitch McConnell had proposed; ultimately, some changes were accepted. Nick Schifrin reports, and Yamiche Alcindor, Lisa Desjardins and The Washington Post’s Robert Costa join Judy Woodruff to discuss the takeaways.