So Republicans are more knowledgeable than Democrats, contrary to what many would like to believe. According to whom? None other than the Pew Research Center, a left-of-center organization. Moreover, Pew’s latest survey only reaffirms previous surveys demonstrating the same result. In fact, the results weren’t even close. In a scientific survey of 1,168 adults conducted during September and October of last year, respondents were asked not only multiple-choice questions, but also queries using maps, photographs and symbols. Among other subjects, participants identified international leaders, cabinet members, Supreme Court justices, nations on a world map, the current unemployment and poverty rates...