Thomas Frank media bias rating is Lean Left.

Thomas Frank (born March 21, 1965) is an American political analyst, historian, journalist and columnist for Harper's Magazine. He is a former columnist for the Wall Street Journal, authoring "The Tilting Yard" from 2008 to 2010, and founder and editor of The Baffler (which Wikipedia describes as a "left-wing magazine of cultural, political, and business criticism"). He is the author of a number of books, most notably What's the Matter with Kansas? (2004).

Source: Wikipedia, Dec 30, 2013: http://en.wikipedia.org/wiki/Thomas_Frank