Debates on the left are typically framed as a division between moderates and progressives, with the two sides wrestling over how best to form a governing coalition. Yet, in many ways, this divide obscures a much bigger fault line: the class divide. The fact is, many of the Democratic party’s ideological factions consist almost exclusively of college-educated professionals. As a result, the priorities of this class tend to dominate the party’s appeals. The priorities of working-class voters, meanwhile, are an afterthought.