ADVERTISEMENT "Kim Darroch did an outstanding job as Ambassador and sorry to see he has resigned his post. He got a raw deal from press," Graham tweeted to his nearly 940,000 followers.

“Since the leak of official documents from this Embassy there has been a great deal of speculation surrounding my position and the duration of my remaining term as ambassador. I want to put an end to that speculation,” wrote Darroch, who had served in the diplomatic post since 2016.

“Although my posting is not due to end until the end of this year, I believe in the current circumstances the responsible course is to allow the appointment of a new ambassador.”

Darroch will stay on until a replacement is found, according to a spokesman for the U.K. Foreign Office.