President Obama and the Democratic leadership are making a critical error in embracing the Occupy Wall Street movement—and it may cost them the 2012 election.

Last week, senior White House adviser David Plouffe said that "the protests you're seeing are the same conversations people are having in living rooms and kitchens all across America. . . . People are frustrated by an economy that does not reward hard work and responsibility, where Wall Street and Main Street don't seem to play by the same set of rules." Nancy Pelosi and others have echoed the message.

Yet the Occupy Wall Street movement reflects values that are dangerously out of touch with the broad mass of the American people—and particularly with swing voters who are largely independent and have been trending away from the president since the debate over health-care reform.