President Donald Trump slammed reports he called Duchess of Sussex Meghan Markle 'nasty' as he prepares to jet off for a three-day state visit to London with his family amid worries the president will interfere in Britain's Brexit crisis.

'I never called Meghan Markle ''nasty,'' Trump wrote on Twitter Sunday morning following an interview where he claimed to be shocked the Duchess had spoken out against him during the 2016 election.

'I didn't know she was nasty,' he's reported to have said.

President Trump leaves for a three-day visit to the UK on Sunday evening

Trump tweeted that the story was 'made up' and suggested he was owed an apology by CNN and The New York Times, the two outlets he most often calls out for being 'fake news'

Trump slammed reports he called Duchess of Sussex Meghan Markle 'nasty'

But on Sunday the president pushed back against his reported quote.

'Made up by the Fake News Media, and they got caught cold! Will @CNN, @nytimes and others apologize? Doubt it!' he continued.

Trump made his comments in an interview with The Sun, telling the paper 'I didn't know she was nasty' after he was told that Meghan once called him as 'misogynistic' and 'divisive'.

However, shortly after those comments Trump heaped praise on the new mother, saying that she would make a 'very good American Princess' and that he hopes she will 'succeed'.

He also said he didn't realize the Duchess of Sussex - who is on maternity leave - would not meet him during his visit. Prince Harry, the Duke of Sussex, will join the Trumps at a luncheon with the Queen.

But it's Trump's comments to the Sunday Times that have UK officials worried as the president and first lady Melania Trump fly to London Sunday evening.

There are concerns Trump will interfere in internal British politics in a public sitting so officials have reportedly come up with a plan to deal with the president, who often speaks from the cuff.

Prince Andrew, Duke of York, will Trump for two of three days during his state visit in order to defuse any political blow-ups with conversations about golf.

The 'golf course diplomacy' is hoped to prevent any diplomatic disagreements from flaring during the three days, as Buckingham Palace pair up golf loving Prince Andrew with the golf loving Trump, reports The Telegraph.

Full details of Trump's state visit to Britain have now been revealed, including all the royals he will meet over the three days

Trump hailed the Brexit Party leader Nigel Farage as a 'very smart person' who could have bolstered Theresa May's botched deal which she failed to push through Parliament

Trump also praised former foreign secretary Boris Johnson, seen here campaigning for prime minister

Concerns were raised when Trump urged the British government to involve Nigel Farage in Brexit negotiations with the EU.

Farage was the main campaigner for British withdrawal from the European Union.

He launched a new political party a mere six weeks ago that found a tide of support among those outraged over Britain’s failure to leave the EU.

His Brexit Party gained 29 MEPs at the European elections last week and, on Sunday, a new poll in Britain showed his party was the most popular party when voters were asked how they will cast their ballots at the next parliamentary election.

Trump praised Farage as a 'very smart person' who could have bolstered outgoing Prime Minister' sTheresa May's botched deal that she failed to push through Parliament.

'I like Nigel a lot. He has a lot to offer. He is a very smart person. They won't bring him in,' he told the Sunday Times.

'Think how well they would do if they did. They just haven't figured that out yet.'

Farage struck up a friendship with Trump in 2016 when he endorsed his presidential campaign and spoke at one of his Mississippi rallies.

Meghan, Duchess of Sussex, will not meet with Trump as she is on maternity leave; Prince Harry, Duke of Sussex, will join the Trumps at a lunch with the Queen

Prince Andrew, the Duke of York takes the salute during the Colonel's Review on June 1 in London, England. He has been dispatched to help handle President Trump

Workers hang a U.S. flag on The Mall towards Buckingham Palace in central London in advance of President Donald Trump's visit

There are questions about whether the president will meet with Farage or Boris Johnson, a hard-liner embracer of Brexit who is the current favorite to be next prime minister.

'I think Boris would do a very good job. I think he would be excellent. I like him. I have always liked him,' the president told The Times.

"I don't know that he is going to be chosen but I think he is a very good guy, a very talented person.'

UK Foreign Minister Jeremy Hunt, a candidate for prime minister himself, brush aside the president's comments on British politics.

'We're quite used to the fact that he does the unexpected thing, and it's not going to affect the warmth of the welcome that we give him because Britain and America are two of the greatest friends you find anywhere on the planet,' Hunt said Sunday on CBS' 'Face the Nation.'

Britain's Prince William and Kate, Duchess of Cambridge are expected to attend Monday night's state dinner with the Trumps at Buckingham Palace

First lady Melania Trump will accompany the president; the first couple is seen at a formal dinner during their July 2017 working visit to the UK

President Donald Trump's children - Don Jr., Ivanka, Eric, and Tiffany (seen with Melania Trump) will join the state visit

It also emerged that ministers and courtiers fear President Trump could embarrass the Queen by publicly backing Brexit in front of her at a Buckingham Palace banquet on Monday night.

Officials fear President Trump will use his banquet address to heap praise on the UK's decision to quit the EU, despite the Royal Family's scrupulous attempts to remain above the political fray.

Palace sources insist the Queen would be 'more than capable' of dealing with such controversy and Foreign Office insiders said they had not broached the subject with Washington.

A Whitehall source said: 'We've learnt that asking them to steer the President off a subject tends to have the opposite effect.'

If Trump did voice his opinion on Brexit in front of the Queen, it would infuriate the palace, given the lengths to which officials have gone to distance the Queen from the divisive debate about Britain's relationship with the EU.

In the meantime, Trump plans to make the lavish state visit - which includes a glamorous white-tie dinner at Buckingham Palace and time with various senior members of the royal family - a family event.

Ivanka Trump, Jared Kushner, Don Trump Jr., Eric Trump, and Tiffany Trump will all participate in what a source close to the administration is calling the 'family events' during the trip.

That will include a lavish State Banquet at Buckingham Palace hosted by Queen Elizabeth II and a dinner at the U.S. ambassador's home hosted by the president and first lady where Prince Charles and Camilla, Duchess of Cornwall, will represent the queen.

The source described much of the trip as a 'family thing' and said 'the whole [Trump] family is going over.'

The trip will give the opportunity for the younger Trumps to meet some of the younger members of the British royal family.

William and Kate, the Duke and Duchess of Cambridge, are expected to attend Monday night's glamorous white-tie dinner at Buckingham Palace.

President Trump with the Queen during last July's working visit to the UK

Police officers and Guardsman from the Horse Guards move past U.S. and British flags as they stretch along The Mall towards Buckingham Palace in central London in advance of U.S. President Donald Trump State visit to Britain

The president's children won't participate in any of the government-related events on his itinerary, which will occupy most of the daytime hours, with the exception of Ivanka, who works in the West Wing as an adviser to the president.

The first daughter 'will be participating in official and ceremonial events in London,' a White House official told DailyMail.com.

A UK official said Ivanka Trump could attend a Tuesday morning breakfast with the president; Prime Minister Theresa May; Andrew, the Duke of York; and UK business leaders.

Ivanka Trump could also meet with some UK cabinet officials who work on women's issues - part of her portfolio at the White House.

But both UK and American sources stress the details for the visit are still being finalized and nothing official has been announced.

The source close to the administration said the Trump children will also join the president and first lady Melania in France on the D-Day landing anniversary on June 6.