A sandwich shop outside of Pittsburgh refused to let Senator J.D. Vance host a planned campaign event, instead reportedly forcing the Republican vice presidential nominee to shake hands in a parking lot. NBC senior political desk editor Doug Adams reported on Saturday that Donald Trump’s pick for V.P. “intended to make a stop at a Primanti Bros near Pittsburgh.” Primanti describes itself as “a chain of sandwich shops in the eastern United States” that was founded in 1933. “[B]ut when they got there, the campaign was told no cams [and] restaurant didn’t want to be part of a ‘campaign event,'” A…