Vice President Joe Biden smiles after speaking at the Metro Detroit AFL-CIO Labor Day Rally, Monday, Sept. 3, 2012, in Detroit. (AP Photo/Carolyn Kaster)

Associated Press
Vice President Joe Biden smiles after speaking at the Metro Detroit AFL-CIO Labor Day Rally, Monday, Sept. 3, 2012, in Detroit. (AP Photo/Carolyn Kaster)
Vice President Joe Biden smiles after speaking at the Metro Detroit AFL-CIO Labor Day Rally, Monday, Sept. 3, 2012, in Detroit. (AP Photo/Carolyn Kaster)
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