Biden responds to claim Trump tested positive for Covid days before their debate –video

Biden was questioned by a reporter over a claim in a book by Trump's last chief of staff that the ex-president had tested positive for Covid-19 three days before the first 2020 presidential debate. When asked whether he thought Trump had put him at risk, Biden said: 'I don't think about the former president'

• Trump tested positive for Covid few days before Biden debate, chief of staff says in new book