David Koch steps away from conservative political empire
Conservative billionaire David Koch is stepping down from a key role in the political and policy empire that made him and his older brother two of the most powerful men in American politics and among the most vilified figures in Democratic circles.
Koch, 78, is leaving the board of the Americans for Prosperity Foundation, Koch officials announced Tuesday. He also is retiring from his roles at Koch Industries, the Kansasbased conglomerate run by his brother Charles. David Koch served as executive vice president of the company and a member of its board. He was chairman and CEO of one its subsidiaries, Koch Chemical Technology Group.