This autumn Britain faces a terrible choice: between the humiliation of a deal dictated by Brussels; and the chaos of crashing out of the EU next March with no deal. But it is not too late to change course.

Today I am publishing my plan for a Better Brexit.

It is a plan that everyone should be able to support: Leavers and Remainers, young and old, people who live in big cities and people who live in rural areas and small towns.

It is a plan around which the whole country can unite.

In advance of the referendum I backed the Remain campaign - mainly because I didn’t believe that leaving the EU was worth the hassle.

But as soon as the result came in on the morning of 24 June 2016, I knew where my duty lay.

Early that morning I tweeted as follows: “The people I work for have made a momentous decision. I advised against it. But they call the shots and I will now do everything I can to make a success of it.”

In February 2017 I left hospital in a wheelchair to vote for Article 50 even though I was undergoing chemotherapy at the time.

Since then I have felt that the right course was to support the Prime Minister in her efforts to negotiate a deal and I have supported the government in all the key votes on legislation relating to Brexit.

I pay tribute to Theresa May for her sense of duty and her resilience.

I admire her determination to deliver what a majority of the British people voted for. But I am afraid that her policy has failed and I can no longer support it.