Kantar, a U.K.-based research firm, conducted a survey to find out what people think of...surveys. They don't much like them, it turns out! Seventy-five percent of Americans (Kantar only talked to Americans) think political polls are biased in some way. Seven percent think they're biased in favor of conservatives, 11 percent think they're biased in favor of liberals, and the remaining 57 percent don't quite know how they're biased, but are still pretty sure they are. That skepticism isn't unreasonable; bias in a statistical sense doesn't have to be intentional. It could merely be an inaccuracy introduced by an unintentionally skewed sample, or imprecise wording of questions, or all kinds of other things.