Tapper presses Biden campaign co-chair on whether Biden is best candid… CNN 0 172 07.02 08:45 https://www.youtube.com/watch?v=SQSCss4rD2I + 23 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 26 Tapper presses Biden campaign co-chair on whether Biden is best candidate to go against Trump