Gaffe watch: Bumbling Biden says Donald Trump is 'sitting President'

Joe Biden has claimed Donald Trump is the current US President as the confused 81-year-old stumbled on his words in a recent public address. The President ripped into Trump during a speech at a Democratic Party dinner in South Carolina on Saturday evening (local time). "I apologise for losing my temper, but it really, really, really, offends me," Biden said. "In recent weeks, we're starting to see real evidence that American consumers are facing real confidence in their economy we're building. Let me tell you who else is noticing: Donald Trump. Did you see what he recently said about he wants to see the economy crash this year? Sitting president. As they say in my faith, bless me father for, I mean, come on, man." The verbal slip-up from President Joe Biden went viral online with many Americans calling out his long history of gaffes. Biden appeared heated during moments of his speech when he mentioned his Republican presidential rival.