What happens next as Joe Biden quits US election - and could Michelle Obama run?
![What happens next as Joe Biden quits US election - and could Michelle Obama run?](https://i2-prod.mirror.co.uk/incoming/article33292650.ece/ALTERNATES/s615/1_FILES-US-VOTE-BIDEN.jpg)
Joe Biden's decision to end his re-election bid leaves the Democrats in unchartered waters of having to choose a new nominee to take on Donald Trump so close to US Presidential election