Pennsylvania Republican gubernatorial candidate Doug Mastriano took some punches from his GOP rivals in this spring’s primary election campaign, but nothing like this. In a new political attack ad launched by the never-Trumpers who lead The Lincoln Project, Mastriano is tagged as a traitor for his post-2020 track record as a Donald Trump election defeat denier. The Lincoln Project is a superPAC organized by Republican political operatives who have grown disaffected with former president Donald J. Trump and his hold on the party, and who now say that they are resolved to fight Trump-like candidates whom they deem to be...