MARK D. HOPSON, the managing partner of Sidley’s Washington, D.C. office, is a global coordinator of the firm’s White Collar: Government Enforcement and Litigation group, which is recognized by U.S. News as one of the nation’s top-tier practices. Chambers USA (2014) notes that clients praise Mark for his "ability to take complex cases and simplify them for the jury" and for his ”strong subject matter expertise and business knowledge.” He is a Fellow of the American College of Trial Lawyers.

Mark has represented clients in many headline-making cases as well as those deliberately kept out of the spotlight. In addition to criminal and civil trial litigation matters, Mark regularly represents clients in connection with congressional investigations, internal investigations and other enforcement matters. The scope of Mark’s practice is reflected in his trial court victories and other recent representations.