According to the polls, Joe Biden is strong favourite to be the next President of the United States. But the party’s leaders bear deep scars from 2016. Donald Trump overcame the odds and beat Hillary Clinton and he claims he can do it again next week. Even if Biden wins, does America really know what his presidency would look like? Stephen Sackur speaks to one of the most senior democrats in Congress, house majority whip Jim Clyburn. Is Democratic party confidence more than skin deep? Show less