. . . . . . . . "200"^^ . "Ronald Machen"@en . "Ronald C. Machen Jr. (born May 6, 1969) is the former United States Attorney for the District of Columbia. In April 2015, he left the position and returned to the law firm WilmerHale after the longest tenure as US Attorney for the District of Columbia in more than 35 years."@en . . . . . . . . . . "1969-05-06"^^ . . . . "2015-03-31"^^ . . . . . . . . . . . . . "Vincent H. Cohen Jr."@en . . . . . . . . . "February 2010"@en . . . . . "1124030814"^^ . . . . . "1969-05-06"^^ . . . . . . . "30947333"^^ . . . . . . . "Ronald C. Machen"@en . . . . . . . . "Ronald C. Machen"@en . "Harvard Law School"@en . "12949"^^ . . . . . . . . . . . . . "Ronald C. Machen Jr. (born May 6, 1969) is the former United States Attorney for the District of Columbia. In April 2015, he left the position and returned to the law firm WilmerHale after the longest tenure as US Attorney for the District of Columbia in more than 35 years."@en . . . . . . . . . . . . . . . . . . . . . . . . . . "Stanford University"@en . . . . . . . . . . . . . . . . . . . . . .