From Politico:
Donald Trump asked for a meeting with Boris Johnson during his U.K. visit, but was turned down.
According to an official close to Johnson, the U.S. president called the former foreign secretary and suggested they have a one-to-one meeting. The official said that Johnson thanked Trump but declined the invitation as he had to prepare for a Tory leadership campaign event.
Shorter Donald: I’m officially inviting you to a public meeting during my visit to London.
Shorter Boris: I’d like to, but I’m scheduled to wash my hair just then. What day was that again?