Edited sentence: Another Americans for Prosperity Foundation board member is Richard Fink, a Koch executive who serves as a director of the refining subsidiary.During the summer of 2008, Americans for Prosperity extended a partisan radio ad buy that attacked North Carolina US Senatorial challenger's, Democrat Kay Hagan, position on taxes and offshore oil drilling.Fink helps control AFP's purse strings.He is president of the Koch-affiliated Claude R.Its foundation's chair and founder is David Koch of Koch Industries, which runs oil refining and pipeline companies.Lambe Charitable Foundation, which gave AFP's foundation $2.2 million from 2005-06, according to the Foundation Center