As Keir Starmer faces MPs over Peter Mandelson’s failed security vetting, his inner circle will be preparing him for his make-or-break moment – an, in my experience of such high-pressure Commons moments, it’s all about the little things, says former Downing Street special adviser Cleo Watson Sign up for our free Voices newsletter for expert opinion and columns Sign up for our free weekly Voices newsletter for expert opinion and columns Sign up to our free weekly Voices newsletter Email * SIGN