Don is founding partner of Baker & Miller, a firm specializing in antitrust, competition policy and international law issues. His practice includes all aspects of antitrust counseling, representing complainants as well as targets (or merger parties) in various government investigations, corporate internal investigations, major arbitrations, and several private antitrust cases for plaintiffs and defendants. Don has briefed and argued cases in the U.S. Supreme Court and several U.S. Courts of Appeal and is currently serving as a Non-Governmental Advisor to the International Competition Network, working primarily on merger processes and monopoly enforcement issues. He has also represented the governments of Australia, Switzerland and the United Kingdom in briefing international jurisdictional issues before the US Supreme Court and Courts of Appeals. Don is a former head the Antitrust Division of the U.S. Department of Justice and the only modern member of the career Antitrust Division staff to be appointed Assistant Attorney General. He was a Trial Attorney and Section Chief (1966-1971), and Deputy Assistant Attorney General for Regulated Industries, Appeals and Foreign Commerce (1972-1975), before becoming Assistant Attorney General (1976-1977). Don was Professor of Law at Cornell Law School (1975-1978), where he taught courses on antitrust law, utility regulation, financial services regulation, and international business transactions.