home / economy/ jobs / democrats test blue-collar appeal in pa primary T thedispatch.com 3d Democrats Test Blue-Collar Appeal in PA Primary A swing district primary could offer clues about what type of candidate appeals to Democratic voters. The Dispatch • thedispatch.com/article/pennsylvania-democratic-primary-seventh-district-midterms/ JobsPennsylvaniaPhiladelphiaUnited StatesElectionsPoliticsEconomyWorld