Attention Wal-Mart shoppers: Democrats disapprove of your buying habits. Democrats are fleshing out their domestic agenda with attacks on the company that brings you everyday low prices. The party is divided about how to address the threat of the insurgents and militias bedeviling us in Iraq, but is united by its response to the threat represented by extremely affordable retail goods and groceries. Appearing at Wal-Mart-bashing rallies has become practically mandatory for Democratic presidential aspirants, according to the New York Times. The Democrats call their broadsides against the super-retailer “populist,” but it’s an odd populism that attacks a company that...