Biden calls into Harris’ new campaign HQ as she addresses staff CNN 0 97 07.23 07:33 https://www.youtube.com/watch?v=zA8FDKHBfQY + 14 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 12 Biden calls into Harris’ new campaign HQ as she addresses staff