HARRISBURG, Pa. (AP) — Four Republican candidates for governor in the party’s crowded primary race say they won't join a debate before the primary election unless it is moderated by a Republican who lives in Pennsylvania and is neutral in the race. The four are Lou Barletta, Jake Corman, Bill McSwain and Dave White. They issued the joint statement Monday night. Republican candidate Charlie Gerow suggested they were scared of a challenge and another Republican candidate, Melissa Hart, called the demands “diva-esque.” The Democratic Party said the candidates didn't want to answer questions tough questions. A spokesperson for Barletta said Republicans ought to pick the Republican candidate.