U.S. President Barack Obama, who won a second term in office by defeating Republican presidential nominee Mitt Romney, waves with his daughters Malia (R) and Sasha and wife Michelle (L) before addressing supporters during his election night victory rally in Chicago, November 7, 2012.    REUTERS/Jeff Haynes (UNITED STATES  - Tags: POLITICS ELECTIONS USA PRESIDENTIAL ELECTION TPX IMAGES OF THE DAY)
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