The GOP nominee for governor has refused to address his campaign giving $5,000 to the white supremacist website Gab. Pennsylvania State Sen. Doug Mastriano, the gubernatorial Republican nominee endorsed by former President Donald Trump, has seen two weeks of heavy criticism over a $5,000 payment his campaign made to Gab, a microblogging website similar to Twitter run by an openly antisemitic, self-described Christian nationalist and frequented by bigots of all stripes. On Wednesday, a group of Jewish, Christian, and Muslim faith leaders, as well as elected Democrats, assembled at the Horwitz-Wasserman Holocaust Memorial Plaza in downtown Philadelphia to condemn Mastriano...