Three weeks before the Kansas Republican Party primary, Lynn Jenkins has launched her first television ad in her effort to become the GOP nominee for the 2nd congressional district, which includes west Lawrence.Jenkins, the state treasurer, faces Jim Ryun in the primary. Ryun, a former five-term congressman with massive name identification from his days as a champion runner, was defeated in 2006 by Democrat Nancy Boyda.The new ad, broadcast in the southeast Kansas market, essentially introduces Jenkins as she criticizes Washington politicians and promises to oppose amnesty for illegal immigrants and not increase taxes.Ryun has already been running two TV ads in preparation for the Aug. 5 primary.