It's Biden v Trump again - but who else is running for president in 2024?
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Joe Biden and Donald Trump are the two major party candidates in the 2024 presidential election, but dozens of other people have filed to run.
None are on a realistically possible path to the White House, but the most well-known threaten to siphon away support from the the Democratic president and his Republican rival.
Here are the candidates with the greatest potential to disrupt the race.
Robert F Kennedy Jr
No outside candidate in decades has loomed over a national election as much as this nephew of former President John Kennedy.
A former environmental lawyer known for his anti-vaccine activism, Mr Kennedy initially sought to run as a Democrat.
But after failing to gain support within the party that is home to his family's political dynasty, the 70-year-old mounted an independent challenge to what he called the "two-headed monster" of American politics,
At least 15 of his relatives have endorsed Mr Biden, which could blunt the threat Mr Kennedy poses to the president's re-election.
"The Democrats are frightened that I'm going to spoil the election for President Biden. The Republicans are frightened that I'm going to spoil it for President Trump," he said at a rally in Philadelphia.
"The truth is, they're both right."
During his campaign, Mr Kennedy has been criticised for repeating debunked conspiracy theories, such as a connection between childhood vaccines and autism, and for once likening Covid vaccine mandates to Nazi Germany.
But his populist economic message and criticism of the two major parties has seen him break through among many disaffected and independent voters.
Mr Kennedy stands little chance of winning the presidency - he has so far qualified to be on the ballot in only seven states - but polls show that he may be drawing away support from both Mr Biden and Mr Trump.
In March, he chose Silicon Valley lawyer and philanthropist Nicole Shanahan, another newcomer to presidential politics, as his running mate. Previously a long-time Democratic donor, she bankrolled Mr Kennedy's attention-grabbing Super Bowl ad.
The major hurdle to this independent candidacy is getting on more ballots - a complicated process varying by state that often involves collecting thousands of signatures. Mr Kennedy's campaign says it has already met the requirements to qualify for nine other states' ballots and has the funding to make it onto all 50 by November.
Jill Stein
The activist and physician ran as the Green Party's candidate in 2012 and 2016.
Now back at 74 years old, she recently told BBC Americast that "Americans are not voting for a candidate they like".
"They're generally voting against the candidate they hate the most," she said. "And that's no way for a democracy to function."
Ms Stein calls for an "economic bill of rights" that would include universal access to healthcare and a right to employment. She also vows to fight climate change, defend abortion access and transgender rights, and was recently arrested at a student protest on behalf of Gaza.
Unlikely to garner more than one or two percent of the popular vote, she could still play spoiler to Mr Biden's re-election hopes in a tight race.
Hillary Clinton supporters partly blame her for the Democrat's narrow defeat in 2016. In three critical states, Mrs Clinton lost to Mr Trump by fewer votes than Ms Stein had received.
The party will confirm its nominee at a July convention and is, according to its website, on the ballot in at least 20 states.
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Cornel West
The 70-year-old activist and well-known academic has a complicated presidential bid.
He launched it in June with the People's Party. After falling out with the group, Mr West said he would seek the Green Party's nomination, but then changed course to run as an independent.
His socialist platform includes funding public healthcare and slashing the US defence budget. Melina Abdullah, a member of the board of directors of the Black Lives Matter Grassroots organisation, is his running mate.
He has attacked Mr Biden as a "war criminal" and Mr Trump as a "fascist pied piper".
His candidacy could be a threat to Mr Biden in crucial swing states like Michigan, although he is currently on the ballot in only six states and has struggled to raise money.
Chase Oliver
At their party convention this month, the Libertarian Party nominated Chase Oliver as their presidential candidate, with Mike ter Maat as his running mate.
In doing so, they spurned Mr Trump and Mr Kennedy, both of whom spoke at the convention in a bid for the party's support. Mr Trump received a notably unfriendly reception and lashed out at the audience during his speech.
Mr Oliver, an openly gay sales executive from Atlanta, previously ran on the Libertarian ticket for US congressional races in Georgia.
He advocates for balancing the budget, ending military support to Israel and Ukraine, closing all overseas US military bases and abolishing the death penalty.
"We know that the lesser of two evils continues to give us more evil," he said in his victory speech on Sunday. "But we're done with that, and so are the voters."
Libertarians advocate for small government and individual freedoms. Typically pulling more from the right side of the political spectrum, the party's nominee in 2020 received more votes than Mr Trump's margin of defeat in three battleground states.
