US President Barack Obama walks to greet wellwishers after arriving on Air Force One at Detroit Metro-Wayne County Airport in Detroit, Michigan, December 10, 2012. Obama is traveling to speak on the economy. (credit: SAUL LOEB/AFP/Getty Images)
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US President Barack Obama greets Michigan Democratic Senator Carl Levin (2nd R), Michigan Democratic Representative John Dingell (2nd L) and Detroit Mayor Dave Bing (L) after arriving on Air Force One at Detroit Metro-Wayne County Airport in Detroit, Michigan, December 10, 2012. Obama is traveling to speak on the economy. (credit: SAUL LOEB/AFP/Getty Images)
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US President Barack Obama greets wellwishers after arriving on Air Force One at Detroit Metro-Wayne County Airport in Detroit, Michigan, December 10, 2012. Obama is traveling to speak on the economy. (credit: SAUL LOEB/AFP/Getty Images)
US-POLITICS-OBAMA-ECONOMY
US President Barack Obama speaks on the economy and fiscal cliff negotiations after touring the Daimler Detroit Diesel Plant in Redford, Michigan, December 10, 2012. (credit: SAUL LOEB/AFP/Getty Images)
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US President Barack Obama speaks on the economy and fiscal cliff negotiations after touring the Daimler Detroit Diesel Plant in Redford, Michigan, December 10, 2012. (credit: SAUL LOEB/AFP/Getty Images)
US-POLITICS-OBAMA-ECONOMY
Factory workers takes photographs as they listen to US President Barack Obama speak on the economy and fiscal cliff negotiations after touring the Daimler Detroit Diesel Plant in Redford, Michigan, December 10, 2012. (credit: SAUL LOEB/AFP/Getty Images)
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US President Barack Obama talks with workers as they perform work on an engine during a tour of the Daimler Detroit Diesel Plant in Redford, Michigan, December 10, 2012, prior to speaking on the economy and fiscal cliff negotiations. (credit: SAUL LOEB/AFP/Getty Images)
US-POLITICS-OBAMA-ECONOMY
US President Barack Obama talks with workers as they perform work on an engine during a tour of the Daimler Detroit Diesel Plant in Redford, Michigan, December 10, 2012, prior to speaking on the economy and fiscal cliff negotiations. (credit: SAUL LOEB/AFP/Getty Images)
