Carmen Milagros Ortiz (born January 5 1956) is the United States Attorney for the District of Massachusetts.In 2009 she was nominated to the position by President Barack Obama. Ortiz is both the first woman and the first Hispanic to serve as U.S. Attorney for Massachusetts. She succeeded Michael Sullivan in that position with Michael J. Loucks serving as the interim U.S. Attorney between Sullivan's resignation and Ortiz's confirmation. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Office Holder