Who governs Britain?

That's a phrase with a political history. Is it relevant today?

Fraser Nelson notes how the NUT is trying to stop schools becoming academies.

We have the NUT undemocratically setting out to sabotage government policy on schools, and Unite seeking judicial review of the proposed reorganisation of the NHS, while Harriet Harman's EHRC seems to think it has the right to call in any government policy for review.

So who does govern Britain?