 The telephone poll interviewed 400 likely voters who were asked whom they would vote for "if the election were held now".On August 16, the "Cook Political Report" changed the rating for the race from "Lean Republican" to "Toss-Up", saying "Despite a significant fundraising advantage over Democrat Joe Donnelly, which has helped fuel a barrage of negative attack ads, incumbent GOP Rep. Chris Chocola looks more like an underdog than the frontrunner.