Foreign Office confirms abrupt departure of UK diplomat from Washington
The diplomat, who served as interim ambassador following Peter Mandelson’s removal, had been deputy head of mission since 2022 and played a key role in recent high-profile state visits.
The Foreign Office has confirmed that British diplomat James Roscoe has left his post as charge d’affaires at the British embassy in Washington. A spokesperson provided a brief statement confirming the departure but offered no official explanation for the timing or reasons behind the exit.
Roscoe had served as the deputy head of mission at the embassy since 2022. He previously acted as interim ambassador following the removal of Peter Mandelson, who was sacked due to his links with Jeffrey Epstein. The ambassadorial posting ultimately went to Christian Turner.
In his role as charge d’affaires, Roscoe played a key part in the diplomatic arrangements for Donald Trump’s state visit to the UK in September 2025. He was also involved in King Charles’ recent state visit to the United States, which marked the 250th anniversary of American independence.
Before his posting to Washington, Roscoe served as the UK ambassador to the UN and as communications chief to the late Queen Elizabeth II. He also held the position of chief press officer in Downing Street for Prime Ministers Tony Blair and Gordon Brown.
His earlier diplomatic career included postings in Sierra Leone and Iraq. The Foreign Office did not elaborate on whether the departure was related to the heightened security environment in the US, where a joint FBI and terrorism task-force is currently investigating a shooting incident at a press gala that targeted President Trump.