It may be noted that a minister cannot disown the stance of his ministry with regard to important policy or executive ...

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

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 ministerial responsibility is a Westminster convention which means that all members of Cabinet must publicly support Government decisions even if they do not privately agree with them.