In a global race, can we really justify the huge number of expensive peripheral European institutions? Can we justify a commission that gets ever larger? Can we carry on with an organisation that has a multibillion pound budget but not enough focus on controlling spending and shutting down programmes that haven't worked?

I want to be the voice of change and hope. I want to confront the big challenges this country faces.

I don't just want a better deal for Britain. I want a better deal for Europe too. So I speak as British prime minister with a positive vision for the future of the European Union. A future in which Britain wants, and should want, to play a committed and active part.

Yes, America must do the right thing, but to provide moral leadership, America must do it in the right way, too.

We can't afford to waste time going slow on changing our party so now is not the time to put our foot on the brake. Now is the time to press on the accelerator.

Let me completely condemn these sickening scenes; scenes of looting, scenes of vandalism, scenes of thieving, scenes of people attacking police, of people even attacking firefighters. This is criminality pure and simple and it has to be confronted.

If we left the European Union, it would be a one-way ticket, not a return. So we will have time for a proper, reasoned debate. At the end of that debate you, the British people, will decide.