Gallup keeps bringing the hits. Today it has a breakdown of early Republican primary polls by the top issues among potential voters. First the qualification: Primary polls this early are poor indicators of results. At this point in 2007, Rudy Giuliani led the GOP field and Hillary Clinton had a virtual lock on the Democratic nomination. But these polls do show us something about how the candidates are viewed, and whom they appeal to. With that said, there are some notable results here. Mitt Romney still does badly among those who social issues as the biggest issue in 2012, as...