Democratic presidential candidate U.S. Senator Barack Obama (D-IL) greets guests at the end of a fundraising concert in Los Angeles

 
Democratic presidential candidate U.S. Senator Barack Obama (D-IL) greets guests at the end of a fundraising concert in Los Angeles
Democratic presidential candidate U.S. Senator Barack Obama (D-IL) greets guests at the end of a fundraising concert at the Gibson amphitheater in the Universal City area of Los Angeles December 10, 2007. REUTERS/Mario Anzuoni (UNITED STATES)