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WASHINGTON - DECEMBER 06: The National Christmas Tree is lit during the lighting ceremony at the Ellipse, south of the White House, December 6, 2007 in Washington, DC. Lighting the National Christmas Tree is an annual tradition of the U.S. President and the tree will be lit through January 1, 2008. (Photo by Alex Wong/Getty Images)

WASHINGTON - DECEMBER 06:  The National Christmas Tree is lit during the lighting ceremony at the Ellipse, south of the White House, December 6, 2007 in Washington, DC. Lighting the National Christmas Tree is an annual tradition of the U.S. President and the tree will be lit through January 1, 2008.  (Photo by Alex Wong/Getty Images)