It is expected that Air Force One will land at London Stansted Airport at 9:00 BST. The Queen will host a state banquet for the president and First Lady Melania Trump at Buckingham Palace on Monday night. During the visit, protests are planned throughout the UK-including rallies in London, Manchester, Belfast, Birmingham, and Nottingham.
President Trump told The Sun before his visit that he was supporting Tory leadership contestant Boris Johnson as the next prime minister in the UK.
He also told that leader of the Brexit Party, Nigel Farage, should be involved in negotiations to leave the EU by the government.
The president will be given a Westminster Abbey tour on Monday and will also meet for tea at Clarence House with Prince Charles and the Duchess of Cornwall.