Ronald Machen

Ronald Machen is a partner at the law firm of WilmerHale. He serves on the firm’s Global Management Committee and is Co-Chair of the firm’s Investigations and Criminal Litigation Group. He is an experienced litigator, having tried more than 35 cases to verdict, who specializes in complex criminal and civil actions. He also routinely helps clients navigate high-stakes, crisis situations that garner the attention of multiple regulators, Congress, and private litigants. Before returning to the firm in 2015, Mr. Machen served as United States Attorney for the District of Columbia, where he oversaw the investigation and litigation of major criminal and civil matters. As U.S. Attorney, Mr. Machen embraced a holistic approach to public safety by investing in intervention and prevention programs designed to educate young people, reduce domestic violence, and protect immigrants and other underserved communities. He also created the first Conviction Integrity Unit, which focused on identifying past wrongful convictions, in any federal prosecutor’s office. Mr. Machen was recently identified as a Criminal Law Trailblazer by the National Law Journal, recognized by Chambers USA for his white-collar crime and government investigations practice, and selected by his peers as one of the Best Lawyers in America.