The furor surrounding Barack Obama’s comments about “bitter” small-town voters and their faith clouds an emerging story line that stood to benefit the eventual Democratic nominee at Republican John McCain’s expense. That narrative was an ironic twist on longstanding partisan stereotypes: a November election that figured to be between a Democrat who is comfortable talking about faith and a Republican who is not. But the Illinois senator’s controversial remarks about “bitter” small-town Pennsylvanians who “cling” to religion and other cultural stances out of economic despair — comments immediately characterized by New York Sen. Hillary Rodham Clinton and McCain as condescending...