US Studies Centre’s CEO Simon Jackman says in this Sky News interview that Donald Trump’s attack on Joe Biden shows he sees the Democratic elder as a genuine electoral ‘threat.’ This week President Donald Trump slammed Mr Biden as a ‘low I.Q individual’ after the former vice president accidentally let slip that he’s running for president. Mr Biden has not officially announced his intention to become the Democratic nominee for the 2020 presidential election, but it is widely expected he will imminently confirm his intention to run.