SIR – Natalie Bennett, leader of the Greens, was absolutely right to say “there is a deep pervasive rottenness at the heart of our institutions, our government, our financial sector and even in the supposed innocence of sport”.

We’ve had Lord Ashcroft's revelations, David Cameron sending party donors and expenses’ abusers to the House of Lords and the Conservatives winning power to govern divisively on a “mandate” from less than a quarter of the electorate.

There’s the never-ending scandals in financial institutions involving corruption. Last week there was Volkswagen and then FIFA!

As Ms Bennett concludes: “There’s a crisis of legitimacy (in) our current politics, our current economics, our current treatment of the environment (and these) clearly cannot deliver even in their own terms, let alone deliver a society that works for the common good. They cannot be trusted. They are rotten to the core.

This is a giant, very smelly stable. A massive clean up of Herculean proportions is needed.”

David Hornsby, West View Avenue, Wrose