LONDON (AP) — British Prime Minister Keir Starmer acknowledged Monday that he made the wrong judgment when he picked Jeffrey Epstein ’s friend Peter Mandelson as U.K. ambassador to Washington, but said he would have withdrawn the appointment if he'd known Mandelson had failed security checks.

Starmer brushed aside a barrage of opposition calls to resign as he tried to explain why Mandelson was given the U.K.'s most important diplomatic post. Starmer placed blame squarely on Foreign Office officials who he said failed to tell him about the security concerns and approved Mandelson's appointment despite them.

The Associated Press