The US president confirmed he would be taking legal action against the broadcaster while on Air Force One overnight on Saturday.
"We'll sue them. We'll sue them for anywhere between a billion (£792m) and five billion dollars (£3.79bn), probably sometime next week," he told reporters.
"We have to do it, they've even admitted that they cheated. Not that they couldn't have not done that. They cheated. They changed the words coming out of my mouth."
Mr Trump then told reporters he would discuss the matter with Prime Minister Sir Keir Starmer over the weekend, and claimed "the people of the UK are very angry about what happened... because it shows the BBC is fake news".
Separately, Mr Trump told GB News: "I'm not looking to get into lawsuits, but I think I have an obligation to do it.
"This was so egregious. If you don't do it, you don't stop it from happening again with other people."
The Daily Telegraph reported earlier this month that an internal memo raised concerns about the BBC's editing of a speech made by Mr Trump on 6 January 2021, just before a mob rioted at the US Capitol building, on the news programme.
The concerns regard clips spliced together from sections of the president's speech to make it appear he told supporters he was going to walk to the US Capitol with them to "fight like hell" in the documentary Trump: A Second Chance?, which was broadcast by the BBC the week before last year's US election.
Following a backlash, both BBC director-general Tim Davie and BBC News chief executive Deborah Turness resigned from their roles.
'No basis for defamation claim'
On Thursday, the broadcaster officially apologised to the president and added that it was an "error of judgement" and the programme will "not be broadcast again in this form on any BBC platforms".
A spokesperson said that "the BBC sincerely regrets the manner in which the video clip was edited," but they also added that "we strongly disagree there is a basis for a defamation claim".
Earlier this week, Mr Trump's lawyers threatened to sue the BBC for $1bn unless it apologised, retracted the clip, and compensated him.
Legal challenges
But legal experts have said that Mr Trump would face challenges taking the case to court in the UK or the US.
The deadline to bring the case to UK courts, where defamation damages rarely exceed £100,000 ($132,000), has already expired because the documentary aired in October 2024, which is more than one year.
Also because the documentary was not shown in the US, it would be hard to show that Americans thought less of the president because of a programme they could not watch.
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Newsnight allegations
The BBC has said it was looking into fresh allegations, published in The Telegraph, that its Newsnight show also selectively edited footage of the same speech in a report broadcast in June 2022.
A BBC spokesperson said: "The BBC holds itself to the highest editorial standards. This matter has been brought to our attention and we are now looking into it."
Donald Trump and Marjorie Taylor Greene were a formidable alliance on the Republican Party's hard-right flank.
For years, the congresswoman for Georgia embodied the combative, conspiracy-tinged politics that define Trump's presidency.
She called him "the father of the America First movement," campaigned to be his running mate, and was quick to defend him.
"David Cameron can kiss my ass," she told Sky News when asked about the former UK prime minister's concerns about US fading support for Ukraine.
Door-stepped by my colleague Martha Kelner, she said: "We don't give a crap about your country or your reporting.
"The Trump administration is doing a great job and I stand by their statements," she added.
"I'm thankful to President Trump that he is leading us out of wars."
Watch Sky's Martha Kelner clash with Taylor Greene earlier this year...
But in recent months, she had expressed concerns about Trump's involvement in the Middle East, Ukraine and elsewhere.
It escalated when she stood with victims of sex offender Jeffrey Epstein to demand justice and joined Democrats in demanding a vote on the release of all files.
Just days ago, President Trump told reporters Taylor Greene had "lost her way", but something triggered a war of words late on Friday.
The president had taken questions on Air Force One, with two reporters citing Taylor Greene's demand that the files be released.
Moments later, President Trump posted on Truth Social that he was withdrawing his endorsement of the congresswoman.
He branded her a "ranting lunatic", "wacky Marjorie", and said all she ever does is "COMPLAIN, COMPLAIN, COMPLAIN."
Her reply came very quickly, in a post claiming she had sent the president text messages about Jeffrey Epstein.
"Apparently this is what sent him over the edge. The Epstein Files," she posted.
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She accused him of "coming after" her to "scare all the other Republicans" before next week's vote to release the Epstein files.
"It's astonishing how hard he's fighting to stop the Epstein files from coming out that he actually goes to this level," she added.
For years, they were joined at the hip - Trump the movement's figurehead, Taylor Greene its megaphone - but it has now descended into open hostility.
Epstein, the story that won't go away, has just cost Trump one of his most loyal allies, and rocked the internal dynamics of his political movement.
Modelled on the Danish system, the aim is to make the UK less attractive for illegal immigrants and make it easier to deport them.
Planned changes mean that refugee status will become temporary and subject to regular review, with refugees removed as soon as their home countries are deemed safe.
Under current UK rules, those granted refugee status have it for five years and can then apply for indefinite leave to remain and get on a route to citizenship.
In a social media video trailing her announcement, Home Secretary Shabana Mahmood said: "We will always be a country that gives sanctuary to people who are fleeing danger, but we must restore order and control."
She called it "the most significant changes to our asylum system in modern times".
An ally of the home secretary said: "Today, becoming a refugee equals a lifetime of protection in Britain.
"Mahmood will change that, making refugee status temporary and subject to regular review. The moment your home country is safe to return to, you will be removed.
"While this might seem like a small technical shift, this new settlement marks the most significant shift in the treatment of refugees since the Second World War."
Time and money 'wasted' on Rwanda scheme
While the number of asylum claims across Europe has fallen, numbers in Britain have risen.
Ms Mahmood said the previous government had had "years to tackle this problem" but had "wasted" time and money on the £700m Rwanda scheme.
Read more: Could Danish model save Labour's bacon?
Some 39,075 people have arrived in the UK after making the journey across the Channel so far this year, according to the latest Home Office figures.
That is an increase of 19% on the same point in 2024 and up 43% on 2023, but remains 5% lower than at the equivalent point in 2022, which remains the peak year for crossings.
Other changes expected to be announced on Monday include requiring judges to prioritise public safety over migrants' rights to a family life, or the risk that they will face "inhuman" treatment if returned to their home country, the Telegraph has reported.
Denmark's tighter rules on family reunions are also being looked at.
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Changes will prevent refugees from 'integrating into British life'
While some research has suggested that deterrence policies have little impact on asylum seekers' choice of destination, but a 2017 study said Denmark's "negative nation branding" had proved effective in limiting asylum applications.
The number of successful asylum claims has fallen to a 40-year low in Denmark, with 95% of failed asylum seekers deported from the country.
But some believe the changes could damage future generations seeking a haven from war, persecution and violence.
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Enver Solomon, chief executive of Refugee Council, said: "These sweeping changes will not deter people from making dangerous crossings, but they will unfairly prevent men, women and children from putting down roots and integrating into British life.
"Refugee status represents safety from the conflict and persecution that people have fled.
"When refugees are not stuck in limbo, they feel a greater sense of belonging, as full members of their new communities with a stable future for themselves, their children and generations to come.
"We urge the government to rethink these highly impractical plans, which will also add to the backlog and chaos that the Home Office is tackling.
"Instead, they should ensure that refugees who work hard and contribute to Britain can build secure, settled lives and give back to their communities."
Shabana Mahmood will be appearing on Sunday Morning with Trevor Phillips from 8.30am tomorrow.
Their fathers, Chris and Nigel, may have had a bitter rivalry back in the 90s, but they managed smiles and an awkward hug at the final news conference this week.
Their two boys don't like each other, even though they ended up metres apart in hospital beds after 12 brutal rounds in April.
Speaking about the April bout, Conor Benn said it left him nauseous - but for his opponent's dad, it was all about emotion.
"I was throwing up, feeling sick in hospital. I can't remember what my dad said, but Senior was just emotional. He was like 'why are you putting yourself through this? Like to both [of us]: 'Why are you guys doing this?'
"He was really upset because we were both in hospital. But we love this, this is what we do, this is what we are."
For Eubank Jr, dehydration was the biggest issue and the worst was over "after a day or so".
"I was hooked up to drips and they had to just replenish my body over a day or two. But, listen, this is what we sign up for. We're fighters."
His father was against the first fight because of the dangers to his son, the bigger man, dropping down to the 160lb weight limit and the dehydration involved.
In a dramatic late U-turn, he joined in the ring walk, stealing the show.
Chris Eubank Junior said his father "still found it in himself and in his heart to come and support his son on the biggest night of his life, which meant a lot. It meant everything.
"This time round, to be completely honest with you, he is still against the fight. He wants me to retire."
The contest healed a long-running rift between father and son and put another Eubank win on the board.
But both men left everything in the ring that night and Conor Benn says putting the weight of the family names aside, there is respect there.
"I ain't got to like him, still not my cup of tea, but there is a respect there of course, because he brought out a fight in me. I brought out a fight in him.
"When you've both shed blood, you are both in hospital together, gave people the fight of the year, how can you not respect the man?"
So they go again at Tottenham Hotspur Stadium with another reported £18m purse on the line.
There's less emotion this time in perhaps the final chapter of a famous boxing rivalry.
The accidental blast occurred late on Friday in the Nowgam area of Srinagar, as forensic and police personnel were evaluating the explosive material, according to police director-general Nalin Prabhat.
Most of the dead were officers and forensic staff, police said, adding that several of the injured remained in a critical condition.
The massive explosion tore through the police station, setting the building and several vehicles on fire.
"The intensity of the blast was such that some body parts were recovered from nearby houses, around 100-200m away from the police station," a police source said.
A series of smaller successive blasts slowed rescue operations.
The police station blast comes just days after a deadly car explosion in New Delhi on Monday, which killed at least eight people near the city's historic Red Fort.
The car explosion occurred hours after police in Kashmir said they had dismantled a suspected militant cell operating from the region, arresting at least seven people, including two doctors from Indian cities.
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Police also seized a large quantity of bomb-making material in Faridabad, near New Delhi.
Indian security forces have conducted multiple raids across Kashmir during their investigation, questioning hundreds and detaining dozens.
Authorities said DNA testing identified the car's driver as a Kashmiri doctor, and government forces demolished his family home in Pulwama district on Thursday night.
In the past, security forces have demolished the homes of individuals they allege were linked to militants opposing Indian rule in Kashmir as a form of punishment.
India and Pakistan both claim all of Kashmir, though each controls only part of the territory.
Militants in the Indian-administered region have been fighting against New Delhi since 1989, with India labeling it Pakistan-backed terrorism.
Pakistan denies the claim, saying that many Kashmiris view it as a legitimate struggle for independence.