It’s not an invasion, but for some in Hazleton, Pa., it feels like one. The northern Pennsylvania town is the home of Republican congressman Lou Barletta, whose 2018 campaign for Senate against incumbent Bob Casey has just begun. Barletta, the polished Italian American, looks the ambitious type in both style and CV: He served as mayor of Hazleton from 1998 to 2010 and ran for Congress thrice over that span.

He finally won in 2010 and has been the representative for Pennsylvania’s eleventh district — which stretches from Luzerne County all the way down to Carlisle — ever since. But while some ambitious politicians are determined to leave their towns behind and enter the world of Washington, what animates Barletta is something quite different. Barletta is concerned about what, apparently, plagues his hometown and the rest of his beloved state: illegal immigration.