Dispute Grows Over Level Of Republican Participation During March On Washington Anniversary Events

Dispute Grows Over Level Of Republican Participation During March On Washington Anniversary Events
FILE - The Rev. Dr. Martin Luther King Jr., head of the Southern Christian Leadership Conference, speaks to thousands during his "I Have a Dream" speech. (AP Photo)
There is a growing dispute concerning the lack of Republican participation during the March on Washington anniversary commemoration events. ABC News Political Director Rick Klein has more.