Over the weekend, the South Bend Tribune conducted an independent poll that showed Dem challenger Joe Donnelly with an eight point lead over Rep. Chris Chocola. This week, the Chocola campaign hit back with its own poll, conducted by Republican pollster Mercury Public Affairs. MPA's response to the numbers from the independent poll? They "believe [their] numbers are better than" the South Bend Tribune's numbers. Oh, and Chocola's campaign only released three questions from the poll. Which one do you trust?