U.S. Senator Barack Obama greets his family at a rally at Iowa State University in Ames
U.S. Senator Barack Obama (D-IL) greets his daughter Sasha as his wife Michelle and other daughter Malia watch during a rally at Iowa State University in Ames, Iowa, February 11, 2007. Obama formally announced his campaign for U.S. President in the 2008 election during a rally in Illinois February 10. REUTERS/Jason Reed (UNITED STATES)
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