Donald Trump hopes Prince Harry and Meghan Markle are ‘happy’ – even if he’s not invited to wedding

Donald Trump has said he hopes Prince Harry and Meghan Markle are "happy" even if he does not receive an invite to their wedding.

The US president also told how his late mother "loved the Queen and the UK".

In an interview with Piers Morgan, to be broadcast on Sunday night, Mr Trump revealed that he sometimes tweets from bed.

And he suggested the US could return to the Paris climate accord if a better deal was struck.

The issue of whether Mr Trump would be invited to the Royal wedding on May 19 has become controversial due to the prince’s friendship with Barack and Michelle Obama.

And Ms Markle has been highly critical of Mr Trump, once suggesting she would leave the US for Canada if he was elected president.

When asked if he had received an invitation, Mr Trump said: "Not that I know of."

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He declined to address whether he would like to go, instead saying: "I want them to be happy. I really want them to be happy. They look like a lovely couple."

When Mr Morgan reminded him that Ms Markle had called him a "divisive misogynist" the president replied: "Well, I still hope they’re happy."

Mr Trump went on to say that his own mother had a "great sense of regal".

Copy of Prince Harry and Meghan Markle: The story of their relationship, in pictures

He added: "She had a love for the Queen. She had a love for the Royal Family.  She really respected the Queen, and she loved the pomp and ceremony. The fact is, she loved the UK."

Mr Trump accepted an invitation made by Theresa May a year ago for a state visit to the UK but no date had yet been fixed.

Following their recent meeting at the World Economic Forum in Davos officials said Mr Trump would go to the UK in the second half of this year, although it may be a lower key working trip rather than a full state occasion.

The president was asked if his late mother Mary Anne MacLeod, who was born on the Isle of Lewis, would have loved him to receive a state visit.

Mr Trump also appeared to criticse Mrs May’s handling of the Brexit negotiations, saying he would have had a "different attitude" and "taken a tougher stand in getting out."

He said: "There is a cooling, and there’s a heating. I mean, look, it used to not be climate change, it used to be global warming.

At a glance | Paris climate accord

"That wasn’t working too well because it was getting too cold all over the place. The ice caps were going to melt, they were going to be gone by now, but now they’re setting records, they’re at a record level."

He added: "I believe in clean air. I believe in crystal-clear, beautiful…I believe in just having good cleanliness in all."

Mr Trump said there was "always a chance" he could return the US to the climate accord but it would "have to be a completely different deal because we had a horrible deal. As usual, they took advantage of the United States".

President Trump – The Piers Morgan Interview airs Sunday at 10pm on ITV.