The crowd reacts as President Barack Obama speaks at a rally at the University of Wisconsin in Madison, Wis., Tuesday, Sept. 28, 2010. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

The crowd reacts as President Barack Obama speaks at a rally at the University of Wisconsin in Madison, Wis., Tuesday, Sept. 28, 2010. (AP Photo/Charles Dharapak)