Biden gets major boost from moderates as Super Tuesday voting gets underway
Super Tuesday voting is underway across the country as the remaining 2020 candidates fight for the Democratic nomination. Joe Biden won key endorsements from three former contenders -- Pete Buttigieg, Sen. Amy Klobuchar and Beto O'Rourke. CBS News political correspondent Ed O'Keefe reports from Arlington, Virginia while CBSN political reporter Caitlin Huey-Burns joins from Houston.