Labour revolt after MPs were ordered to vote down inquiry into scandal of Peter Mandelson’s failed security vetting Sign up to our free Brexit newsletter for our analysis of the continuing impact of Brexit on the UK Sign up to our free newsletter for the latest analysis on Brexit's impact Sign up to our free newsletter for the latest analysis on Brexit's impact Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Sir Keir