Here is the latest news:
NAME_1 has launched his re-election campaign with a video in which he says the country faces a pivotal moment in the 2024 vote.

The Democratic Party, however, still need convincing that he is the best candidate they have.

Polls show about half of Democrats want the party to nominate someone else - although many of those said they will still vote for him.

So who are the most prominent other people running?

NAME_2
Self-help guru NAME_2 was the first Democrat to jump into the 2024 race, with a formal campaign launch in March.

Ms NAME_3, 70, is a long-time social justice activist, best-selling author and former "spiritual advisor" to NAME_4 who made her first foray into politics in 2020.

She transfixed audiences with a frenetic performance at two Democratic primary debates, in which she declared that the only way to defeat NAME_5 was to "harness love for political purposes".

The fringe candidate ended that campaign before voting began but she has remained an outspoken voice for the progressive left.

Her 2024 policy platform backs universal government-run healthcare, free childcare, at least $1tn (£800bn) in slavery reparations to black Americans and a federal agency called the Department of Peace.

NAME_6

Anti-vaccine activist NAME_6 has filed paperwork to run for the White House and will launch his campaign later in April.

The nephew of President NAME_7 and the son of slain US Attorney General NAME_8 NAME_9