WARRENDALE, Pennsylvania — One hour before Dave McCormick, the Republican Army veteran running for the U.S. Senate seat against Sen. Bob Casey (D-PA), was set to arrive at a Jergel’s Rhythm Grille, a suburban Pittsburgh music venue, the expansive parking lot was spilling out into neighboring businesses and side streets to accommodate the crowd.

Many attendees had to walk several blocks and park on a side street to find a place before heading into Jergel’s, where hundreds of people were there to hear both McCormick and former U.N. Ambassador Nikki Haley make their closing case for his candidacy as well as former Donald Trump’s.