US President Joe Biden on Sunday announced he would end his re-election campaign, and said Kamala Harris, his vice-president, should take his place.
“I want to offer my full support and endorsement for Kamala to be the nominee of our party this year,” he wrote on X. “Democrats — it’s time to come together and beat Trump.”
Ms Harris taking over looks likely, although it is not a done deal.
Several others were touted as potential replacements for Mr Biden but have backed Ms Harris. If the endorsement becomes official, a running mate will be needed.
Delegates will vote next month at the Democratic National Convention to officially confirm who will replace Mr Biden, and the candidate for vice-president.
The following names could be in the mix.