This much we know for sure: Come November, Pennsylvania's all-boys club also known as the Keystone State's congressional delegation will come to an end.And you can thank the voters of Delaware County and the new 5th District for the welcome change.Voters here will choose between Democrat Mary Gay Scanlon, an attorney and former president of the Wallingford-Swarthmore School Board, and Republican Pearl Kim, a former county assistant district attorney and deputy state attorney general.