BOCA RATON, FL - APRIL 10: People listen and take pictures as U.S. President Barack Obama speaks on the economy at Florida Atlantic University on April 10, 2012 in Boca Raton, Florida. The President made the case for the Buffet Rule, a principle for fairness that ensures that millionaires pay at least the same effective tax rate as middle class families pay. (Photo by Marc Serota/Getty Images)
BOCA RATON, FL - APRIL 10: People listen and take pictures as U.S. President Barack Obama speaks on the economy at Florida Atlantic University on April 10, 2012 in Boca Raton, Florida. The President made the case for the Buffet Rule, a principle for fairness that ensures that millionaires pay at least the same effective tax rate as middle class families pay. (Photo by Marc Serota/Getty Images)
