Nigel Farage is demanding Parliament sits in September so Donald Trump can address both Houses during his State Visit.
Buckingham Palace has confirmed that the US President and First Lady Melania will be in the UK from September 17 to 19.
Mr Trump will be the only leader in modern times to carry out two ceremonial visits, with the first having happened in 2019.
However, the House of Commons is due to go into recess for the party conference season the day before. That seemingly rules out Mr Trump getting the same honour as Emmanuel Macron did during his visit last week.
Government sources suggested there are no plans to change the dates of the visit or the sitting dates for Parliament.
Keir Starmer dramatically extended the official invitation from the King as he wooed Mr Trump at the White House in February.
However, there has been a backlash from some left-wing MPs who launched a campaign to block him from addressing Parliament.
There have also been concerns about protests in London, with polls suggesting Mr Trump is deeply unpopular with Brits.
Mr Farage told GB News – where he is a presenter – that he supported a recall of Parliament so a speech could happen.
‘Without doubt – the USA is our most important ally,’ he said.
The President will be accompanied by his wife, First Lady Melania, on his trip from September 17 to 19. Trump and his wife are pictured during their first visit
In February, during a meeting at the White House, Sir Keir Starmer presented Mr Trump with a ‘historic and unprecedented’ personal invitation from the King
The then Prince of Wales and US President Donald Trump during commemorations for the 75th Anniversary of the D-Day landings in 2019
In an interview with the Sunday Times over the weekend, Lord Mandelson lavished praise on Mr Trump.
The peer said Mr Trump was a ‘phenomenon’ who ‘dominated’ Washington and would be ‘one of the most consequential presidents in American history’.
Lord Mandelson said of the State Visit: ‘He should expect a warm reception because he really does love Britain. He hugely admires it.
‘He trusts Keir Starmer. It’s not a question of expressing our gratitude. My lodestar here is to demonstrate respect, not sycophancy. I don’t think the administration has any problem with that.’
Reminded that Labour left-wingers have started a petition against Mr Trump addressing both Houses of Parliament, the peer said: ‘Well there’s a surprise… But I had assumed that at the time of the visit Parliament won’t be sitting.’
In the letter in February, the King suggested he and the President might meet at Balmoral or Dumfries House in Scotland before the grander state visit began.
However, it is understood that there were logistical challenges surrounding an informal visit, with complexities in both the King and Mr Trump’s diaries meaning a private meeting was not possible over the summer months.
It emerged last week that Police Scotland has been in the early stages of planning for the visit, which is likely to see the President travel to either of his golf clubs in Aberdeenshire or Ayrshire – an event which will require substantial policing resources.
Precedent for second-term US Presidents who have already made a state visit is usually tea or lunch with the monarch at Windsor Castle, as was the case for George W Bush and Barack Obama.
The September event comes after Charles visited Canada in May where he opened the nation’s parliament.
A visit during Parliamentary recess would reduce the potential for protests, but also deprive Mr Trump of an honour that was granted to Emmanuel Macron last week (pictured)
Many Canadians saw the King’s two-day visit to Ottawa as a symbol of support for the country that has faced the unwanted attention of Mr Trump’s trade war and threats to annex it.
Last week, Mr Macron and his wife Brigitte were hosted by the King and Queen during his three-day visit.
Mr Macron’s itinerary included a glittering banquet at Windsor Castle, a carriage ride through the historic Berkshire town and a ceremonial welcome.
The state dinner was attended by the Queen, the Prince and Princess of Wales, the Prime Minister and senior members of the Cabinet.
