Voters in Pennsylvania in attendance at a campaign event for Sen. JD Vance, R‑Ohio, reacted to Vice President Kamala Harris’ announcement of her running mate on Tuesday, with many of them having never heard of him before. “Never heard of him,” Sheila Armstrong from Philadelphia told Fox News Digital in response to Harris’ choice of Gov. Tim Walz, D‑Minn.“Not before today,” she explained. She even joked, “I was looking on the map where Minnesota was at again.“TRUMP-ENDORSED MIKE ROGERS WINS REPUBLICAN SENATE PRIMARY IN MICHIGANThomas Quinn from Downingtown also hadn’t heard of Walz prior to his inclusion on the vice president’s short list. “Which is why I have not done any homework,” he said. “I don’t really know much about him. I understand it takes a lot to be a governor. And I also understand that he’s a veteran… So I really don’t know that much about it, but I’ll do my reading.“Cliff Skinner, also from the Keysto …