 Complete the following phrase:  Levison was instrumental in all the activities of the Southern Christian Leadership Conference SCLC, the organization established by Dr. King and other Southern black preachers to further the cause of civil rights. He professionalized the fund raising of the organization and took on many of the publicity tasks, in addition to serving as Dr. Kings literary agent. He was also a close adviser to Dr. King and a ghostwriter for him. Levison co-wrote with Clarence Benjamin Jones one of the drafts for Dr. Kings I Have a Dream speech presented at the 