Brownstein: This is the big picture takeaway from the Iowa poll CNN 0 173 01.15 22:11 https://www.youtube.com/watch?v=JTaD_aBciyk + 13 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 14 Brownstein: This is the big picture takeaway from the Iowa poll