“Americans have fought their way back from tough economic times,” former Secretary of State Hillary Clinton said in her Sunday campaign rollout video. “But the deck is still stacked in favor of those at the top.”

Clinton’s class-warfare tale has just enough truth behind it to resonate with some Americans. After all, according to data from the Congressional Budget Office, the top 20 percent of income earners in 2011 (the last year for which full data are available) earned 52 percent of all pre-tax income.