Similarly, the ethos of the NHS as a public service, where patient needs come before profits, is taking another blow. Yet Labour is unable to mount a principled defence since, when they were in power, they welcomed in private healthcare providers, and saddled the NHS with huge debts through PFI.

Across the board, Labour simply cannot oppose coalition plans without laying themselves open to the charge of hypocrisy. Academies? A Labour idea. Selling off Royal Mail? A Labour idea. Even the programme of cuts in public services is something Labour admit they would have done, had they won in May.

But Labour’s leadership, with a typical lack of humility, assume that students and others will meekly return to the party that betrayed them. Ed Miliband wouldn’t be seen meeting students, let alone marching with them he said he thought about it, but was “doing something else” at the time. There lies the heart of Labour dilemma they want to win back the trust of voters, but also pander to the Daily Mail. Joining the protests or challenging heavy handed policing in parliament, as I have done, does not seem to fit with Labour’s obsession with the fabled middle ground of British politics.

Politics does not have to be a straight choice between power and principles. In our election campaign in May, the Greens did not drop any of our controversial policies. We stuck to what we believed in and, against all the odds, we won our first seat. It shows that if you tell the truth and offer people something better, the public will respond.

Caroline Lucas MP

Leader, Green party