Klinkner’s map about the Huckabee vote and Catholics counties in Iowa is pretty interesting. It fits well with what we know about the Huckabee vote from survey data. It may tell us more about the Huckabee campaign than anything else. He won a very large majority of Iowa counties, tapping into the “Protestant majority” in the Hawkeye state. But this pattern raises the issue of the fabled Catholic “swing” vote and whether it will stay in the GOP column in 2008. These data have their limitations, of course: We don’t know if Romney actually got more Catholics or not, just that he did better in Catholic counties. Another thought: Catholics report very little hostility towards Mormons compared to evangelicals. So this map may be as much about evangelical skepticism toward a Mormon candidate as it is about Catholic wariness of an evangelical candidate.