In May 1787, the first constitutional convention began in Philadelphia, setting out ambitious powers for a new kind of modern state in America.

Two-hundred-and-twenty-eight years to the day, Core City leaders met in London on 14 May to launch their own Devolution Declaration, a document that sets out how we can create a modern state for a stronger Britain. On the same day George Osborne went to Manchester to restate his commitment to city devolution, Core City leaders joined decision-makers, academics and thought leaders to hear our offer to the country and the new Government, an offer to help re-balance, reform and renew Britain.

We can rebalance and grow our economy to create more jobs and eliminate the deficit, reform public services to improve outcomes and reduce costs through better co-ordination and we can renew democracy – giving people a say in their own future. Only by working together nationally and locally in a different way can we transform the lives of millions and ensure our country competes in a globalised and complex world.