Ukraine’s President Volodymyr Zelenskyy has said he can “forget” Joe Biden’s gaffe where he introduced him as “President Putin”.

The US leader made the blunder on Thursday at a NATO summit in Washington DC, and in another high-profile mistake hours later he referred to his number two, Kamala Harris, as “Vice President Trump” at a news conference.

Asked during a visit to Ireland on Saturday about Mr Biden’s Putin mishap, Mr Zelenskyy told reporters: “It’s a mistake. I think United States gave a lot of support for Ukrainians. We can forget some mistakes, I think so.”

Please use Chrome browser for a more accessible video player

At the Washington summit, NATO members pledged $43bn (£33bn) in military aid for Ukraine next year as it defends itself from Russia’s full-scale invasion and attempts to deter future aggression.

There were new promises of air defence support, including Patriot missile systems and F-16 fighter jets.

The latest gaffes by Mr Biden have heaped further pressure on the 81-year-old who is facing calls from within his own party to step aside as the Democrat nominee in the White House race amid concerns about his age and fitness to serve.

An NPR/PBS poll released on Friday found Mr Biden leading his 78-year-old Republican rival Donald Trump 50% to 48%.

That is a slight rise from his position before a 27 June debate, where the president seemed to lose his train of thought and his voice trailed off several times.

👉 Click to subscribe to the Sky News Daily wherever you get your podcasts 👈

Mr Biden has repeatedly said he intends to stay in the contest ahead of November’s election.

And he retains support from key figures in the party, including California Governor Gavin Newsom, a prominent Democrat who is tipped as a possible presidential nominee in future.

Read more:
Analysis – Biden blew reset moment
President Biden’s various gaffes over the years

At a boisterous performance at a rally in Detroit on Friday, Mr Biden insisted: “I am running and we’re going to win.”

“I’m the nominee,” he said. “I’m not going anywhere.

“It’s time for us to stop treating politics like it’s entertainment or a reality TV show.”

And to wild cheers, he shouted: “Donald Trump is a loser!”

Please use Chrome browser for a more accessible video player

Mr Biden also warned Project 2025, a conservative policy platform that would seek to slash the federal government if Donald Trump is elected, was “deadly serious”.

Since the 27 June debate, at least 19 Democrats in Congress have urged Mr Biden to step aside so the party can pick another candidate, as have some donors, Hollywood stars, activist groups and news outlets.

Around $90m in donation pledges will remain on hold as long as he remains in the race, the New York Times has reported.

Related posts:

More pressure on Cuomo to quit as top Democrats urge NY governor to resign over harassment claims Boxing champion ‘Marvelous’ Marvin Hagler dies unexpectedly aged 66 US senator blocking Joe Biden’s climate legislation poses threat to success of COP26 Lab worker discovers frozen vials labelled ‘Smallpox’ in freezer Foo Fighters drummer Taylor Hawkins has died, band announces Rare winter storm batters Los Angeles – with snow and blizzards leaving residents without power Video of Nashville school killer entering building released by police Four killed as Texas hit by tornadoes, hurricane-force winds and hailstones bigger than tennis balls Trump back in court for third week of his ‘rigged’ fraud trial Car crashes into A&E department in Texas Boeing whistleblower found dead Defamation case against Meghan Markle by half-sister dismissed by US judge