Sir Keir Starmer told ministers they could “either be the disruptors or the disrupted” at the start of a marathon Cabinet ...

Ed Miliband has said that he abides “by collective responsibility” when asked if he personally ... Mr Miliband voted against ...

While it is impossible to know their exact degree of involvement in practice, were super juniors to meaningfully participate in cabinet decision-making, it would violate collective responsibility.

So much for cabinet collective responsibility. A strong prime minister would sack a cabinet minister for such insubordination. Ms Mordaunt remains in post. "She should be called in on Monday ...

Collective responsibility is the rule that the Cabinet must act as one on government decisions. Miliband later told the Today programme a final decision on Heathrow expansion is "some years off ...