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WASHINGTON, DC - AUGUST 23: U.S. Rep. John Lewis (D-GA) listens to his introduction before speaking at March On Washington stamp unveiling at the Newseum, August 23, 2013 in Washington, DC. The U.S. Postal Service hosted the event to unveil a limited edition stamp commemorating the 1963 march on Washington for civil rights.
(Photo by Mark Wilson/Getty Images)