... what did Chet Culver do to gain the bump in the poll? I honestly could not think of anything. In both debates he offered little vision for the future of the state, and instead focused on attacking Jim Nussle. So if Culver didn't do anything to gain his bump, then Nussle must have messed up right? Nope. Nussle was solid in both debates and showed a good grasp on current events. So if the kandidates don't have anything to do with the sudden change in the poll numbers then it either has to be a poorly done poll or the national mood has infiltrated Iowa voters.