When people talk about renegotiation, changing plans and suggesting that all of this can be all worked out again, I make one point. What has been set out here is a realistic appraisal of what is possible, necessary and doable. If people say they want to make changes, ensure they add up and that they do not create more uncertainty at a time when this country critically needs some certainty. I say that in a constructive way to the House because everyone has a perspective on these issues and a hope that we can pull through in these difficult circumstances.

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