He heads Plexus Consulting's Government Relations Services. He has practiced government relations/public affairs for twenty-five years in the nation's capitol. His past clients include companies in the following industries: forest products, railroads, truck manufacturers, electric utilities and power companies, banking and financial interests, education, law enforcement/criminal justice, hospitals, defense manufacturers, and interests of foreign countries. Baldwin's personal background includes experience as chief of staff of Members of Congress, trade association executive, corporate officer, White House special assistant, chairman of a Presidential advisory board, and chairman of a state (Virginia) board of regents.

Donald Baldwin enjoys close, personal relationships with key members of Congress, including the leadership of the House and Senate. Donald Baldwin has been Assistant to the Chairman of the Republican National Committee, and active member of past presidential campaigns committees. He was educated at the Virginia Military Institute and the University of Virginia where he earned his Bachelor of Arts degree in English and his graduate degree in History.