Trump prepares fries at McDonald's in an effort to challenge Harris's previous employment at the fast-food chain.

 Donald Trump visited a McDonald's in a crucial Pennsylvania county on Sunday, while Kamala Harris shared her own McDonald's experience, which is an integral part of her biography. Despite Harris's claims, Trump has repeatedly asserted, without evidence, that she never worked there.

Former President Donald Trump has long been a fan of McDonald's. After arriving at Philadelphia International Airport on Sunday, Trump and his team made their way to a McDonald's in Feasterville-Trevose, Pennsylvania. There, he donned an employee apron and began serving customers in the drive-thru lane, even helping to cook fries. However, the visit was less about his love for fast food and more about challenging Vice President Kamala Harris's claims about her past.

For weeks, Trump has cast doubt on Harris's assertion that she worked at McDonald's during the summer of 1983 while attending Howard University. According to her campaign, she was employed at a McDonald's in Alameda, California, where she worked the cash register and cooked fries. On Friday, Trump stated in Detroit that Harris “lied about working at McDonald's.” His senior advisor, Jason Miller, further questioned her employment on Saturday, suggesting Trump's visit was to emphasize his connection to McDonald's.

During the drive-thru visit, Trump taunted Harris, claiming he had worked at McDonald's “15 minutes more than Kamala” and reiterated his doubts about her employment there. Harris's campaign firmly rejected Trump's accusations. “When Trump feels desperate, all he knows how to do is lie,” said campaign spokesman Ian Sams. “He can’t understand what it’s like to have a summer job because he was handed millions on a silver platter, only to blow it.”

The Harris campaign has highlighted her McDonald's experience as a reflection of her middle-class upbringing, contrasting her background with Trump's affluent lifestyle. As both candidates remain in a tightly contested race, Trump has been promoting his economic record, an issue he previously leveraged against President Joe Biden. However, after Biden exited the race in July, Harris quickly engaged Trump on economic matters and has succeeded in diminishing his previous advantage in critical swing states.

McDonald's, based in Chicago, is the world's largest fast-food chain, employing over 25,000 people in Pennsylvania alone. Derek Giacomantonio, the owner of the McDonald's location Trump visited, expressed pride in showcasing the restaurant and emphasized its role in providing job opportunities. “As a former crew member, I can attest this job is more than burgers and fries, but a meaningful pathway to opportunity,” he stated.

Trump's fondness for fast food is well-documented. After securing the necessary GOP delegates in 2016, he was seen enjoying a Big Mac on his private jet. In January 2019, he famously served fast food from McDonald's, Burger King, Wendy's, and Domino's to the Clemson University football team at the White House.

Business Insider has reached out to both the Trump and Harris campaigns for comment.