U.S. Republican presidential candidate Donald Trump manned the fry station at a McDonalds in Pennsylvania on Sunday before staging an impromptu news conference, answering questions from reporters through the drive-thru window. After an employee showed Trump how to dunk baskets of fries in the oil, the former president took his turn and even helped fill some takeout bags after a bit. Trump's assessment? “It requires great expertise, actually, to do it right and to do it fast.” The visit to the store in Feasterville happened as he dug into his claim — one that's spreading without offering evidence — that U.S. Democratic presidential candidate Kamala Harris never worked at the fast-food chain while in college.