Costas called for Biden's withdrawal before the debate. Hear what he t… CNN 0 134 07.14 05:53 https://www.youtube.com/watch?v=6V45fS06UEA + 26 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 17 Costas called for Biden's withdrawal before the debate. Hear what he thinks now