"At the same time, we will not compromise our fundamental values of equality, diversity and human rights, and we expect these values to be made clear during the presidential visit to the UK".
Mr. Trump arrived from Brussels on Thursday at Stansted Airport, north of London, before boarding his Marine One helicopter for the short flight to Winfield House, the U.S. Ambassador's residence in the center of the British capital.
Anti-Trump protesters lined the roadway leading to the palace near Oxford - but it's unlikely the Trumps even saw them. "I think meeting with people is great". "Britain is going to have to look right around the world for allies with which to do trade deals". He added: "I think that's why Brexit happened".
Mr Trump has recently been under fire for his own immigration policy, which resulted in the separation of immigrant families.
Mr Trump's planned visit has been met with plenty of anger, with 50,000 protesters expected to take to the streets of central London on Friday.
Two senior cabinet ministers, including former foreign secretary Boris Johnson, resigned this week over the plan, saying it keeps the country too aligned to the European Union and does not respect the wishes of the people who voted to leave the EU in the 2016 referendum.
The state visit has never been scheduled - there is fierce opposition to it in many quarters of Britain - and this trip is part of a working visit instead, meaning, among other things, that Trump will overnight at Winfield House, the US ambassador's handsome residence near Regents Park rather than in Buckingham Palace or Windsor Castle as a guest of the queen.
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But despite all the mass protests planned for his visit - the first of which are now taking place outside Winfield House, where the President spent the afternoon - he declared "people like me there".
When asked about the threat of mass demonstrations he said: "I think it's fine".
Trump also lambasted May's Brexit proposals and claimed she ignored his advice on negotiations.
Russia, Brexit and the Middle East are set to top the agenda.
The dinner is Trump's official welcome to the United Kingdom during their first visit since Trump's election.
After the visit, Trump will decamp to Finland for a one-on-one with Russian President Vladimir Putin on July 16.
On Thursday, Trump will travel to Blenheim Palace, the 18-century stately home where Britain's World War Two leader Winston Churchill was born and spent most of his childhood. She also said that it's an opportunity to strengthen cooperation on security.