The United Kingdom’s former ambassador to the United States has taken another step back from public life over his connections to convicted sex offender Jeffrey Epstein, resigning from the Labour Party on Sunday.

Peter Mandelson announced he would be stepping back from the governing party after the latest release of Epstein files by the Department of Justice, sending a letter to Labour’s general secretary on Sunday evening. Prime Minister Keir Starmer fired Mandelson from his role as ambassador to the U.S. in September 2025 after a series of emails between Mandelson and Epstein became public.

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