If Barack ObamaBarack Hussein ObamaObama marks MLK Day by honoring King for his 'poetic brilliance' and 'moral clarity' Biden breaks away from 2020 pack in South Carolina National Archives says it altered Trump signs, other messages in Women's March photo MORE becomes the Democratic presidential candidate, he will accept his party's nomination on the 45th anniversary of Martin Luther King Jr.'s "I Have A Dream" speech, Obama-backer Markos Moulitsas notes.

King gave his speech Aug. 28, 1963 in front of the Lincoln Memorial as part of the March On Washington. The Democrats' candidate for president will officially accept the nomination in a speech on Aug. 28, the final day of the party's convention in Denver.