Editorial : A nation should not swap prime ministers every time they make a mistake 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 UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice T here is no doubt that Sir Keir Starmer made an appalling mistake in appointing Peter Mandelson as