President Lyndon Johnson talks with civil rights leaders in his White House office on Jan. 18, 1964. The black leaders, from left, are, Roy Wilkins, James Farmer, Dr. Martin Luther King Jr., and Whitney Young.
President Obama stands on stage with Vice President Biden and their families after accepting the party nomination during the final day of the 2012 Democratic National Convention in Charlotte, N.C.
Alex Wong/Getty Images
Sen. Dianne Feinstein, D-Calif., speaks with reporters after alleging that the CIA broke federal law by secretly removing sensitive documents from computers used by the Senate Select Committee on Intelligence, the committee tasked with congressional oversight of the CIA.
Win McNamee/Getty Images
American Federation of Labor and Congress of Industrial Organizations President Richard Trumka addresses members during the quadrennial AFL-CIO convention at Los Angeles Convention Center in Sept. 2013.