Pressure builds on Biden as news conference fails to stop rebels

Joe Biden's press conference in which he insisted he was still fit to run for US president has failed to silence critics from his own party.

Three Democratic politicians joined the growing list calling on Mr Biden to drop out of the US presidential race.

Calls for the 81-year-old to step aside have escalated since he stumbled through a TV debate with Republican Donald Trump last month.

At an hour-long briefing taking reporters' questions on Thursday night he was more steady and fluent but there were a number of verbal gaffes.

He mistakenly referred to his deputy, Kamala Harris, as "Vice President Trump" when answering the first question.

Two hours earlier at a Nato event he introduced Ukraine's leader Volodymyr Zelensky as "President Putin" before correcting himself.

It means Mr Biden's candidacy still remains in peril, with the possibility of more defections over the next few days.

Some donors including actor George Clooney have pulled their financial support, saying he is not competent to carry out another four-year term.

Shortly after Mr Biden finished his press conference, Connecticut congressman Jim Himes posted on X, formerly Twitter, praised Mr Biden's record in public service, but called on him to step away from the campaign.

The strongest candidate to confront the "threat" posed by Trump, he wrote, was not longer Joe Biden.

Illinois congressman Eric Sorensen also posted on social media that Mr Biden ran in 2020 "with the purpose of putting country over party. Today I am asking him to do that again".

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California congressman Scott Peters was the third to speak out, saying the "stakes are high, and we are losing course".

They bring the tally of Democratic politicians calling on Mr Biden to go to 19.

During the briefing, Biden insisted to reporters that he’s in the race to “complete the job”.

“If I slow down and can’t get the job done, that’s a sign I shouldn’t be doing it,” he said. “But there’s no indication of that yet.”

Many of his supporters in Congress came out immediately after the news conference to echo his belief that he is the best candidate.

"We've got to stop the nitpicking and then focus on the work ahead. This guy has done it, he's done it in the past," said Democratic National Committee chairman Jaime Harrison.

US allies have also weighed in on Mr Biden's side, with prime minister Keir Starmer saying he had been on "very good form" when they met face-to-face at the summit.

French president Emmanuel Macron called the mistakes just a slip of the tongue and that Mr Biden was on top of matters.

But Trump was quick to mock Mr Biden for his Kamala Harris mistake. "Great job, Joe!" he wrote on Truth Social.