President Donald Trump being interviewed by Fox's Laura Ingraham in front of the Normandy American Cemetery in northern France

Donald Trump is flying home to Washington on Friday after a five-day state visit to Britain, Ireland and France to commemorate the 75th anniversary of D-Day but can expect to find himself immediately confronted with a number of major issues left stewing in his absence.

After the enjoying the pageantry of his royal reception in London, the president will arrive home this afternoon to face escalating trade tensions with Mexico and China and further calls for his impeachment, with House speaker Nancy Pelosi reportedly telling her fellow Democrats on Tuesday: “I don’t want to see him impeached, I want to see him in prison.”

Mr Trump hit back at Ms Pelosi, calling her “a disaster” during an interview with Laura Ingraham of Fox News staged in front of the Normandy American Cemetery in plain view of 9,000 war graves, an insensitivity for which both the president and the network have been heavily criticised.

The president also caused mass confusion on Twitter when he urged NASA not to plan any further trips to the moon, instead directing all of their efforts to Mars.

“For all of the money we are spending, NASA should NOT be talking about going to the Moon - We did that 50 years ago,” he wrote on Twitter.

20 pictures that sum up President Trump's visit Show all 20 1 /20 20 pictures that sum up President Trump's visit 20 pictures that sum up President Trump's visit An awkward greeting As the Queen welcomed Trump to Buckingham Palace, he shared an awkward handshake with her. PA 20 pictures that sum up President Trump's visit "Oi Trump" Essex teenager Ollie Nancarrow mowed this message to Trump in a field near Stansted airport, in order that the president would be forced to see it as he came in to land. BornEco 20 pictures that sum up President Trump's visit A warm welcome Protesters gesture at the helicopter carrying the president as he arrives at Buckingham Palace on the first day of his visit. Getty 20 pictures that sum up President Trump's visit Inspecting the guard After arriving at Buckingham Palace, President Trump inspected an honour guard with Prince Charles. AP 20 pictures that sum up President Trump's visit Khan hits back After the president insulted Sadiq Khan, the London mayor, over Twitter as he landed in Britain, Khan hit back in this video released by Elle. PA 20 pictures that sum up President Trump's visit Mild reception on the Mall The Mall, the road leading to Buckingham Palace, was lacking in pomp as Trump arrived after his visit to Westminster Abbey, only a very small crowd turned out to see the spectacle. Reuters 20 pictures that sum up President Trump's visit Toast with the Queen The president shared a toast with the Queen at the state banquet on his first night in Britain. Reuters 20 pictures that sum up President Trump's visit Creepy kids This picture of Ivanka Trump and husband Jared Kushner, shared to Ivanka's Instagram, was described variously as "terrifying", like "nightmares" and "scarier than the shining." Getty 20 pictures that sum up President Trump's visit Rolling out the red carpet A red carpet was rolled out for the president's arrival to 10 Downing Street. Reuters 20 pictures that sum up President Trump's visit Meeting with May President Trump met with Prime Minister Theresa May on the second day of his visit. They did not speak privately but in a boardroom meeting. Reuters 20 pictures that sum up President Trump's visit Spouses get along First Lady Melania Trump and husband of the prime minister Philip May attended a garden party for the families of Downing Street staff while the two leaders were in their meeting. Getty 20 pictures that sum up President Trump's visit Baby blimp flies again The famous Trump baby blimp made a return in the protests against the president's visit, after first appearing in July last year. EPA 20 pictures that sum up President Trump's visit Crowd gathers A large crowd of protesters gathered in Trafalgar Square in London to protest the president's visit. Notable protesters included a man selling Donald Trump toilet paper and a man dressed as Vladimir Putin controlling a Trump puppet. PA 20 pictures that sum up President Trump's visit Protesters mix and mingle Supporters of the president and protesters of his visit clashed by Parliament Square on the second day of Trump's visit, with some supporters being hit by milkshakes. Reuters 20 pictures that sum up President Trump's visit Toilet Trump A 20ft statue of Trump tweeting while sitting on a golden toilet was placed in Trafalgar Square as protesters gather on the second day of the president's visit. Tom Batchelor / The Independent 20 pictures that sum up President Trump's visit Corbyn speaks In an address to protesters, Labour leader Jeremy Corbyn accused the president of spreading "hatred" and "racism" and expressed disappointment that Sadiq Khan had "been attacked in the way he was." PA 20 pictures that sum up President Trump's visit Churchill hat During his interview with the president on Good Morning Britain, Piers Morgan gave Trump a hat of a style favoured by Winston Churchill, one of Trump's heroes. ITV 20 pictures that sum up President Trump's visit Bus stop baby Activists Special Patrol Group installed this poster in to several bus stops around Portsmouth ahead of the president's arrival for D-Day commemorations PA 20 pictures that sum up President Trump's visit Fly-past with the queen President Trump watched the Red Arrows fly-past with the Queen at an event in Portsmouth to commemorate the 75th anniversary of the D-Day landings AFP/Getty 20 pictures that sum up President Trump's visit Commemoration speech The president gave a speech at an event to commemorate the 75th anniversary of the D-Day landings. Along with Trump, the prime minister and the royal family, French president Emmanuel Macron and 300 Second World War veterans were in attendance. AFP/Getty

He added, “They should be focused on the much bigger things we are doing, including Mars (of which the Moon is a part), Defense and Science!”

Mr Trump also declared Friday that now “there is a good chance” the US will strike a deal with Mexico to avert the tariffs he had scheduled for Monday to force the nation’s ally to stem the flow of Central American migrants into the United States.

“If we are able to make the deal with Mexico, & there is a good chance that we will, they will begin purchasing Farm & Agricultural products at very high levels, starting immediately,” Mr Trump tweeted from aboard Air Force One as he flew home from Europe. “If we are unable to make the deal, Mexico will begin paying Tariffs at the 5% level on Monday!

The tweet marked a change in tone from earlier Friday, when his spokeswoman Sarah Sanders had told reporters in Ireland before Mr Trump took off: “Our position has not changed. The tariffs are going forward as of Monday.”

US and Mexican officials were holding a third day of talks at the US State Department Friday trying to hash out a deal that would satisfy Mr Trump’s demand that Mexico dramatically increase its efforts to crack down on migrants.

Ms Sanders had said earlier that the two sides had “made a lot of progress” but not enough.