Photo: OLIVIER DOULIERY
The decision by Joe Biden to step out of the US presidential race this morning has left his Democratic Party with a conundrum: who should replace him?
President Biden read the room - stepping down from his campaign for re-election after a faltering debate performance against Republican candidate Donald Trump that fueled concerns about his ability to win. It's less than a month since the party is due to hold its Convention and the traditional nomination process is now up in the air.
To explain what happens now, Kathryn is joined by Phil Klinkner - professor of Government at Hamilton College in the state of New York.
