Senator Tom Coburn (R-OK), is known as a Tea Party favorite who isn't afraid to go after anyone, but now he's turning his attention to professional sports -- and it could cost the PGA Tour millions in new taxes. The PGA Tour and LPGA Tour, like its fellow U.S.-based sports leagues, are classified under the law as a 501(c)(6) organization -- a tax-exempt status granted to Business Leagues, Chamber of Commerces and Real Estate Boards. Coburn's bill, the PRO Sports Act (S. 1524) would exclude major sports leagues from receiving tax-exempt status and force the PGA Tour, which generated more...