Donald K. Sherman is an American attorney and nonprofit executive specializing in government ethics and legal accountability. He currently serves as interim president and executive director of Citizens for Responsibility and Ethics in Washington (CREW) since January 2024, having previously held roles as Senior Vice President and Chief Counsel, Deputy Director, and Executive Director at the organization. In these positions, he has led legal advocacy efforts on congressional ethics, election certification, Hatch Act compliance, and other transparency initiatives. Sherman is also an adjunct professor of law at Georgetown University Law Center, where he teaches ethics-related topics. His career began on Capitol Hill as counsel for the House Ethics Committee, investigating alleged ethical violations by members of Congress and their staff. Prior to that, he practiced law at the Washington, DC office of Crowell & Moring, LLP, and served as a law clerk to the Honorable Neil E. Kravitz of the District of Columbia Superior Court. His early experiences in ethics enforcement and litigation have shaped his ongoing work in holding public officials accountable, contributing to investigative journalism and public interest litigation that maps networks of influence in Washington, DC.