Barack Obama, right, U.S. senator from Illinois and 2008 Democratic presidential candidate, points to the audience following a victory speech at his campaign headquarters in Des Moines, Iowa, U.S.  Joining Obama on stage are his wife Michelle Obama, second from left, and their daughters Malia Obama, left, and Sasha Obama, second from right. Obama and Republican Mike Huckabee won in Iowa's party caucuses tonight by decisive margins in the nation's first presidential nomination contest.

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