Back in 2008, candidate Barack Obama turned even Joe the Plumber to his political advantage by playing percentages and pitting the majority of the country against the super-rich. Such was the simplicity of his message that even those attending an American university could grasp it. As one college student told this newspaper at the time, "Everyone knows Obama's only going to raise taxes on those making more than $250,000, and Joe the Plumber does not make more than $250,000."

Politically...