You have to remember that during Trump's first administration, there was a terrible U.S. ambassador who committed a hit-and-run in the UK, killing a cyclist. The victim’s family traveled to the U.S. to seek justice, hoping the president would revoke her diplomatic immunity since she had fled the country.
The moronic president, treating it like a reality TV stunt, had the ambassador unexpectedly pop into a meeting with the grieving family—on live TV—to say sorry. This is just how his broken brain operates.