the polls and the fact hillary clinton is now saying in a new ad today i stand with barack obama on guns. it s time to make a choice. she doesn t mention bernie sanders. but she s really making guns one of the touch stones of this campaign as she tries to differentiate between his record and hers. she s essentially making this the center piece of her campaign right now. if you watched her campaign over the last four or five days, this has been an area where they think they can draw contrast with sanders. they think it could weaken him with some of the liberal progressive voters in the country. because they are still aligned with sanders on so many other issues. but i think more broadly it has exposed the fact that the clinton campaign is nervous. they re seeing something not just in public polling but presumably in their private polling and any focus groups. they re showing that enthusiasm and momentum are with sanders. it doesn t mean he will be the nominee. if there is enthusiasm