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Inauguration Day in 19 photos
The Second Term Inauguration of U.S. President Barack Obama
WASHINGTON, DC - JANUARY 21: The crowd chants "Obama" as the U.S. president is introduced during inaugural events on the National Mall for the second term inauguration for U.S. President Barack Obama on Monday, January 21, 2012, in Washington, DC. (Photo by Jahi Chikwendiu/The Washington Post via Getty Images)
