About two weeks ago, U.S. Republican presidential candidate Donald Trump walked into a McDonald’s at Pennsylvania, threw on an apron, and cheerfully began serving french fries to customers. The act was aimed at trolling the Democratic Party candidate, Kamala Harris, who has often said that unlike her billionaire opponent, she is middle class and understands the concerns of working-class Americans. Through the stunt, Trump also wanted to underscore that he stands with working-class voters. The election outcome hinges on a few swing States, and Pennsylvania in particular, which has seen a steady decline in industrial manufacturing over decades, could prove pivotal in determining the winner.