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.
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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.
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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.
Republican National Committee chairman Reince Priebus is seen at the Jan. 24 RNC winter meeting in Washington. Priebus celebrates the achievements of black Republicans in a series of new radio ads designed to honor Black History Month.
Republican Ed Gillespie announced Thursday that he's challenging Democratic Virginia Sen. Mark Warner in November's election. Gillespie, a senior adviser to Republican Mitt Romney in the 2012 presidential race, is shown here at Romney's election night rally in Boston on Nov. 6, 2012.
Trish Gallagher holds a sign for passing motorists to read during a demonstration in support of a higher minimum wage near a Burger King in Boston on Dec. 5. Massachusetts is one of several states considering a minimum wage ballot measure.