At the end of an interview last week, I asked Karen Pierce, the departing British ambassador to the United States, what ...

Newly published emails show that the incoming British ambassador to the U.S., Lord Peter Mandelson, kept in contact with Jeffrey Epstein until at least 2012—long after Epstein’s conviction on child ...

LONDON — Britain’s former Ambassador to the U.S. Karen Pierce has a new gig: she’s becoming the U.K.’s special envoy to the ...

Few British diplomats have taken on a job as fraught with political risk as Mr. Mandelson’s. His first day at the embassy will coincide with President Trump’s 18th day in the Oval Office ...