No10 knew Mandelson failed security vetting seven months ago
- Posted on April 17, 2026
- By The Independent
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No10 knew Mandelson failed security vetting seven months ago
The Independent put revelations that Peter Mandelson had failed MI6 vetting for the US ambassador role to Downing Street in September – but a ‘furious’ Sir Keir insists he did not know until this week
