Quentin Letts: ‘How much bloodier Prime Minister’s Questions would be if hopeless Ed Miliband’s role could be played instead by a Tory MP such as David Davis (Haltemprice & Howden) or Andrew Tyrie (Chichester) or Zac Goldsmith (Richmond Park).’

Mr Davis said: ‘The Lib Dems will have to ask themselves whether it is OK to cover up 15 cases a year of torture, defective military equipment or other official wrongdoing.’