From the WSJ:
As we noted yesterday, the politics of insult can have a certain snob appeal. When liberal politicians talk down to ordinary Americans, it can energize snooty so-called progressives who think they're better than everyone else. But even snooty progressives don't like being talked down to. Because they fancy themselves superior, they probably dislike it with a special intensity. At this rate, it won't be long before Obama's only remaining supporter is Barack Obama.