Donald Trump today doubled down on his attack on Prince Harry and Meghan Markle, accusing them of being 'very terrible' to Prince William and insisting he would 'never speak to them again'.

The US President also appeared to largely blame the Duchess of Sussex for the rift with the Royal Family, accusing her of having a 'horrible' influence on her British husband.

His fresh attack came 24 hours after he claimed he 'wouldn't have taken them back' following their shock return to the UK.

Speaking to GB News host Bev Turner, Mr Trump said the Sussexes had done 'too many horrible things' to be welcomed back so easily.

The fact that the King had recently met Harry and Meghan showed Charles is 'a much better person than I am', Mr Trump said.

'I wouldn't have done it. I would have said forget it,' he said.

'Personally, I would not have taken them back. Too much hate, too many really bad things.'

Meghan and Harry have returned to the UK after six years and the President said he was 'happy' they had left the US.

He said: 'First of all, I think King Charles is fantastic, he's a friend of mine. He [Prince Harry] wrote a book that was so bad, and she was a horrible influence on him. What she's done to him is unacceptable.'

Mr Trump argued that the way the couple treated Harry's brother, Prince William, was also 'terrible'.

He said: 'But I think that what she [Meghan] has done and him [Prince Harry], he wrote a book that was very terrible to William, it was terrible.

'The things he said, I wouldn't... I mean, it's just me. I'm sure I'm wrong on this, but I would not have taken him back. I would have never spoken to him again.'

Ms Turner suggested that, although there appears to be 'no relationship' between Prince Harry and Prince William, the King appears to have 'offered an olive branch' to his son and daughter-in-law.

Mr Trump responded: 'It shows you what a good man King Charles is. He's a much better person than I am. I wouldn't have done it. I would have said forget it.'

Ms Turner then joked: 'But your children probably wouldn't have done what Harry did to his father, the relationship is different.'

Mr Trump laughed, telling her: 'Well, I hope not!'

Heaping further praise on the King, the US President reflected on the monarch's recent visit to America and how 'everybody loved him'.

He told Ms Turner: 'If I were King Charles, I would not take them back. There's too much. He was here a couple of months ago, everybody loved him in America. He spoke in front of Congress, everybody loved him. He's a fantastic guy.

'And he's been a friend of mine for a long time. I knew him as Prince Charles, I know him as King Charles, and he's amazing and he's fighting through a very tough situation with his health, and very few people would have that bravery to do what he's done.'

President Donald Trump had earlier cheered the news of Prince Harry and Meghan Markle's surprise return to the UK. 

'I was not a fan,' he added, noting that he had a 'very good relationship with the Queen and with [King] Charles'.

'I thought they treated the Royal Family with great disrespect. I didn't like it,' Trump told reporters of Harry and Meghan. 'I didn't like the way she acted.'

'I thought she was terribly disrespectful to the Queen, to King Charles,' Trump said of Meghan's behaviour and the couple's decision to step back from their royal duties six years ago. 

Harry and Meghan told King Charles last month that they would be moving back to Britain with their children, Archie, seven, and Lilibet, five, who are slated to begin school there this week. 

The Sussexes are now staying in the UK for an 'extended period' after flying into the country on August 26.

The family is said to be eyeing a home in the Cotswolds.

While the couple appeared to be leading a quiet, private life in Montecito, California, the pair had made no secret of their disillusionment with the current administration.

And with the November midterm elections fast approaching, concerns about the direction of the US have been top-of-mind, People magazine first reported. 

Their return to Britain was cheered by some in Trump's orbit, who mocked the news following reports that the decision was motivated in part by their views of the current president. 

Katie Miller, the wife of White House deputy chief of staff Stephen Miller, shared a report about their move on social media, noting: 'They are moving back to Britain because they don't like President Trump.'

Conservative personality Megyn Kelly also responded to their move and their decision to step down as senior members of the working family six years ago – a decision many dubbed 'Megxit.'

'We've done our time here in America my dear friend!' Kelly said on X, replying to Right-wing commentator Dan Wootton's post about Megxit being 'reversed.'

The family is not severing their California ties for good, however. They plan to keep their home in Montecito, as well as a separate vacation property they own in Portugal. 

'What is absolutely crucial is that Harry never fell out of love with Britain – he fell out of love with the circumstances he found himself living in, and those are very different things,' Harry's friend Alex Rayner, who went with him on a charity trek to the North Pole in 2011, and remains in regular contact with him, told the Daily Mail of their return.

Others spoke of 'an increasing and significant shift in sentiment, a feeling the American dream might not be all it was cracked up to be.'

That sentiment does not appear to be one-sided, either. 'This is coming from Meghan as well as from him,' a friend told the Daily Mail. 'I hear that Meghan is all for rekindling with and reconnecting with Harry's English side. She is fully behind it.'

President Trump and King Charles indeed appear to share a warm relationship. 

Their camaraderie was on full display in April, when Trump hosted Charles and Queen Camilla at the White House for the first state dinner of his second term – and to celebrate the country's 250th birthday. 

Trump and the King made comments about their countries' shared backstories, with Charles calling the fete a 'very considerable improvement on the Boston Tea Party.' 

The King also called attention to the president's 'readjustments' to the East Wing, which is no longer standing. 

'I'm sorry to say that we British, of course, made our own small attempt at real estate redevelopment of the White House in 1814,' the King joked.