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Donald Flexner became one of the three named partners of the firm in December of 1999 and is now resident in the firm's New
York City office. His main practice areas include antitrust litigation and counseling, as well as representing clients
before antitrust enforcement agencies in connection with government investigations and merger reviews.
Mr. Flexner has represented clients in civil and criminal matters, in federal and state courts, and before the United States
Department of Justice, the Federal Trade Commission and other federal agencies and various state enforcement authorities.
Such representation has included counseling with respect to mergers, acquisitions, joint ventures, and a broad variety of
compliance issues.
Mr. Flexner has served as the lead counsel in several major antitrust cases. Recently, Mr. Flexner was the lead trial
counsel in the defense of a major domestic airline in an antitrust suit filed by the United States government. Among other
clients, he has represented major manufacturers, pharmaceutical corporations, telecommunications firms, entertainment
companies, and railroads. Mr. Flexner has appeared in numerous federal and state courts and has argued before the Supreme
Court of the United States.
Prior to entering private practice, Mr. Flexner served as Deputy Assistant Attorney General in the Antitrust Division of the
United States Department of Justice. In that position, he was responsible for directing the law enforcement and competition
advocacy activities of the Division in regulated industries. At various times, he also served as Acting Head of the
Division. As a representative of the Department of Justice, Mr. Flexner was a key player in Administration efforts to enact
regulatory reform legislation, including the railroad and trucking industries. In November of 1977, he became head of the
Energy Section, a post that supervised antitrust litigation and regulatory interventions involving a broad spectrum of
energy-related industries. From 1976 to 1977, he supervised court and administrative litigation, serving as Chief of the
Regulated Industries Section. As a representative of the Department of Justice, Mr. Flexner was a key player in
administration efforts to enact regulatory reform legislation for the railroad, airline, and trucking industries, among
others. As a trial attorney for the Antitrust Division, Mr. Flexner represented the United States in both civil enforcement
actions and criminal prosecutions.
From July 1980 until December 1999, Mr. Flexner was a partner with Crowell & Moring, where he served on the firm's
management committee and as head of the antitrust group.
Mr. Flexner is a past chairman of the Industry Regulation Committee of the Antitrust Section of the American Bar Association
and a member of the
Antitrust Section Task Force on the Antitrust Division. He also is a frequent lecturer.
Selected Professional Awards and Associations
Government Service
Areas of Practice
Education
Admissions
See Library Tab for articles, publications and presentations
by Donald Flexner
