Delegates hold up signs while listening to U.S. President Barack Obama speak during day three of the Democratic National Convention (DNC) in Charlotte, North Carolina, U.S., on Sept. 6, 2012. Photographer: Victor J. Blue/Bloomberg
Delegates hold up signs while listening to U.S. President Barack Obama speak during day three of the Democratic National Convention (DNC) in Charlotte, North Carolina, U.S., on Sept. 6, 2012. Photographer: Victor J. Blue/Bloomberg
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