Don co-founded and served as chairman of the District of Columbia College Access Program that has helped double the number of DC public high school students going on to college and has helped triple the number graduating from college. He remains a member of the DC-CAP board. Since its inception, DC-CAP has assisted over 23,000 DC students enroll in college and has provided scholarships totaling more than $33 million. Upon learning of the plight of undocumented students with no access to college, Graham co-founded TheDream.US, a national scholarship fund for DREAMers, created to help undocumented immigrant youth get access to a college education. His wife, journalist Amanda Bennett (formerly Director of Voice of America) joined him in this endeavor. Graham is a trustee of the Federal City Council. He also served as a director of the College Success Foundation, KIPP-DC, The Summit Fund of Washington, Facebook, and was a member of the Pulitzer Prize Board.