Mr Trump made his comments about his good friends as he addressed waiting reporters on the South Lawn of the White House earlier on Thursday.
"He has been a strong supporter of Brexit and I think he really does look forward to negotiating with a fully independent Britain outside the European Union". I think he would be excellent. Last year, he told the Guardian: "There was an error on the side of the bus".
They are being forced to switch tactics and are instead trying to rally round the candidate deemed best placed to beat him in the membership ballot - potentially Michael Gove, the Eurosceptic environment secretary. A meeting could help Mr Johnson's leadership ambitions, showing he can establish a rapport with the president, whose personal relations with Theresa May have been lukewarm.
A blimp depicting Donald Trump as a snarling, nappy-wearing orange baby will fly outside Britain's parliament during the visit while protesters plan a "carnival of resistance" in central London, a reprise of protests past year.
The president will then travel to Normandy to attend the commemorations marking the 75th anniversary of the D-Day landings, the historic high point in Anglo-American co-operation, when a combined force of American and British troops spearheaded the successful invasion of northern France on June 6, 1944, thereby laying the foundations for the liberation of Europe from Nazi occupation. They're two very good guys, very interesting people.
The Queen, 93, is hosting no fewer than four official events in tribute to Mr Trump, and Prince Charles and the Duke of York will be heavily involved too.
Downing Street however hit back at the claim.
Mr Trump is bringing four of his five children with him, including son Barron, 12, and his daughter Ivanka Trump and her husband Jared Kushner.
After failing to pass her Withdrawal Agreement Bill three times, the prime minister announced that she would be stepping down as Tory Party leader on June 7th - after President Trump's State Visit between June 3rd and 5th.
A large field of candidates from the right-leaning Conservative Party are vying to replace her, and have already begun setting out the policies they will use to woo fellow lawmakers and party members.
There is also the possibility that Mr Trump will meet with Nigel Farage during his visit.
Britain's finance minister warned those in his party vying for May's job that a no-deal Brexit would endanger the economy.
Mr Farage said: "Please then, tell your boss and your Cabinet".
'I hope this contest does not degenerate into a competition to see who can make the biggest spending or tax cutting pledges, ' he said.