In a week, Hillary Clinton will take the stage alongside Bernie Sanders, Martin O'Malley, Jim Webb, and Lincoln Chafee to duke it out in the first Democratic debate, hosted by CNN in Las Vegas. While the Republicans have had their share of verbal elbowing and name-calling on live TV, Clinton, the Democratic frontrunner, has much more to lose if her takedowns backfire — especially if her criticism is leveled at her primary competition in the field, Sen.