David Jahn – Libertarian Candidate for U.S. Congress Category: Past Campaigns http://www.djahn.net Libertarian candidate for representative in the United States Congress for Pennsylvania’s District 7. Congressional District 7 consists of Delaware County and parts of Montgomery County and Chester County. Comments comments Contact Info: David Joahn PA « Pawlowski for Governor 2005 » Jason Gatties for 79th District State Representative – 2006