'Across demographic lines,' Part III
Reader Andre has a different view of those SC exit-poll numbers:
The view that Obama "transcended race" in SC is based on holding his own among white men in a three-way race. In primaries especially, candidates are expected to do well among their core demographics, and it's now clear that these are blacks for Obama and women for Clinton; so performance among voters who are neither blacks nor women is a reasonable test of broad appeal. My reading of the exit polling on Bill Clinton's impact is that he helped his wife against Edwards, presumably by winning her an increased share of voters who go for slick Southern white men.