Article Photos: Marching for King's dream: 'The task is not done' 19/19

Civil rights leader Rep. John Lewis, D-Ga., speaks at a rally to commemorate the 50th anniversary of the 1963 March on Washington on the steps of the Lincoln Memorial on Saturday, Aug. 24, 2013, in Washington. Lewis marched in the from line with the Rev. Martin Luther King Jr. on Aug. 24, 2013, the day King gave his famous "I Have a Dream" speech. (AP Photo/Carolyn Kaster)