Morgan McSweeney, Keir Starmer’s former chief of staff, to be questioned by MPs

Exclusive: McSweeney summoned by foreign affairs select committee in rare step, as Mandelson vetting row continues

Morgan McSweeney is facing a showdown with MPs who will grill him on whether he placed extreme pressure on the Foreign Office to approve Peter Mandelson as ambassador.

The prime minister's former chief of staff will be questioned next Tuesday by the foreign affairs select committee over allegations made by the former Foreign Office permanent secretary Olly Robbins, who said No 10 had questioned why Mandelson should be subject to any vetting.