MSNBC host Alex Witt and Democratic California Rep. Barbara Lee were puzzled by former President Donald Trump’s visit to a Pennsylvania McDonald’s on Sunday, where he helped out while a crowd cheered him on from outside. Since September, Trump has repeatedly accused Harris of lying about working at a McDonald’s in Alameda, California, during the summer of 1983. On “Alex Witt Reports,” the MSNBC host shifted her interview with Lee to discuss Trump’s visit, showing a series of videos where he wore a McDonald’s apron and helped cook some of the food. READ: Dem Strategist Says Voters Who Don’t Bel…