Thomas Sowell media bias rating is Lean Right.

Thomas Sowell (/soʊl/; born June 30, 1930) is an American economist, social theorist, political philosopher, and author. He is currently the Rose and Milton Friedman Senior Fellow on Public Policy at the Hoover Institution, Stanford University. According to Larry D. Nachman in Commentary magazine, he is considered a leading representative of the Chicago school of economics.

Sowell has served on the faculties of several universities, including Cornell University and University of California, Los Angeles, and worked for think tanks such as the Urban Institute. Since 1980 he has worked at the Hoover Institution at Stanford University. He is the author of more than 30 books. A National Humanities Medal winner, he advocates laissez-faire economics and writes from a conservative and libertarian perspective.

Source: Wikipedia: http://en.wikipedia.org/wiki/Thomas_Sowell