Biden, 81, is blasted by CNN for repeating lie that he used to drive an 18-wheeler...after spending one night as passenger in cargo truck in 1973

President Joe Biden repeated a lie he's told in the past about having driven an 18-wheeler truck at a speech in Florida Tuesday. 

At 81, the oldest president in American history, Biden has remained a gaffe machine throughout his presidency, often re-telling lies about his biography that have been repeatedly debunked, even by mainstream outlets.

At Hillsborough Community College in Tampa Bay on Tuesday, Biden claimed to have driven a big rig.