Media columnist Education: Georgetown University; Northwestern University's Medill School of Journalism Margaret Sullivan is the media columnist for The Washington Post. Before joining The Post, she was the New York Times public editor, and previously the chief editor of the Buffalo News, her hometown paper, where she started as a summer intern. She is a graduate of Georgetown University and Northwestern University’s Medill School of Journalism. She was a member of the Pulitzer Prize board from 2011 to 2012, and was twice elected as a director of the American Society of Newspaper Editors, where she led the First Amendment committee. While living in Manhattan, Sullivan taught in the graduate schools of journalism at Columbia University and the City University of New York.