Keir Starmer faces leadership crisis

The scandal centers on why Mandelson's vetting failure was reportedly overridden by Downing Street, despite concerns regarding his past foreign links.

Sacked Foreign Office head Olly Robbins is expected to provide testimony that could further undermine the Prime Minister's position.

Cabinet ministers have publicly rallied around Starmer, but senior government figures fear the controversy could cost him his leadership ahead of local elections.

The opposition has characterized the appointment as a gamble with national security.