Audience members, including workers, cheer as President Obama speaks Dec. 10, 2012, about the economy during a visit to the Daimler Detroit Diesel plant in Redford, Mich. (Associated Press)

Photo by: Charles Dharapak

Audience members, including workers, cheer as President Obama speaks Dec. 10, 2012, about the economy during a visit to the Daimler Detroit Diesel plant in Redford, Mich. (Associated Press)