But some Republicans are worrying that Mastriano is squandering the opportunity in one of the country’s most consequential races. Would-be allies have remained on the sidelines, having concluded by now that a Mastriano win in November might require a minor miracle. Coincidentally, divine intervention is just what the candidate has in mind this week. On Monday night, Mastriano’s campaign posted on Facebook a photo of two hands under the words “40 days of fasting & prayer” with the dates Sept. 29 through Nov. 8 — Election Day. “Interceding for our elections, our state, and our nation,” it stated, along with...