evidence: Joe Biden claims he taught political theory at the University of Pennsylvania, but he never did [...] President Joe Biden on Thursday, September 14, said that he used to "teach political theory" at the University of Pennsylvania – but he never really did. "Our democracy is under attack, and we got to fight for it," 80-year-old Joe said during a speech at Maryland’s Prince George’s Community College. "I taught at the University of Pennsylvania for four years and I used to teach political theory. And folks, you always hear, every generation has to fight for democracy." [...] X users slammed Joe for lying about his position at UPenn, with one user commenting on the viral video, "To bad we can’t impeach him for chronic lying!" "Well, you must admit that lying is part of political theory," one user said, while another wrote, "Business as usual from one of the all-time biggest pathological liars."