Former United States Attorney for the District of Columbia, Ronald C. Machen, Jr., is rejoining WilmerHale as a partner in its Investigations and Criminal Litigation (ICL) Practice. As United States Attorney, Mr. Machen earned a reputation for investigating and prosecuting corruption and fraud involving financial institutions, government contractors, healthcare companies and public officials. He was the longest-serving US Attorney in nearly four decades while leading the nation's largest US Attorney's office. Ron was a partner in WilmerHale’s ICL practice group before his appointment as US Attorney.