The abrupt moves followed furor over claims that a documentary had misleadingly edited footage of President Trump’s speech before the Jan. 6 Capitol riot.
The president and the first lady will be hosted by King Charles III and Queen Camilla at Windsor Castle. Mr. Trump will also travel to the prime minister’s country residence, Chequers.
Even after restoring order, the new prime minister faces a bigger challenge: defusing the issues of fraying public services and a cost of living crisis that underlie the unrest.