[ad_1] Doug Mastriano, the Republican nominee for governor of Pennsylvania, is underneath rising scrutiny over his connections to the far-right social media platform Gab and its founder, who has repeatedly made antisemitic remarks defending their ties.Early this month, information emerged that Mr. Mastriano’s marketing campaign had paid Gab, a haven for white nationalists and customers banned from different platforms, $5,000 for “consulting,” in line with a state submitting that was first uncovered by Media Issues for America, a liberal watchdog group.Since then, Mr. Mastriano, a far-right state senator who has falsely argued that the 2020 presidential election was stolen and…