2020 Daily Trail Markers: Biden fires back at Trump after campaign rally attacks

Former Vice President Joe Biden had a busy week as the impeachment inquiry against Donald Trump continues to dominate headlines. On Thursday, the president slammed Biden at a campaign rally. Then on Friday, Biden's campaign attempted to shift the conversation, unveiling his plan for "Education Beyond High School." CBS News 2020 campaign reporter Bo Erickson rounded up the week in politics on Friday's edition of 2020 Daily Trail Markers.