Bill Cash MP and Bernard Jenkin MP launched a paper entitled "The EU single market – a positive way forward.”

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They wrote, “The Prime Minister’s forthcoming speech on the EU, which aims to set out the basis of the “new relationship” with our EU partners, must address the key question which arises from the present unhappiness.
Then they questioned “Can all these problems and disagreements be resolved by dealing with each of them on a case-by-case basis within the existing treaty framework? Or does a “new relationship” require a fundamental change in the UK’s constitutional and legal relationship with the EU treaties themselves? The latter is far more likely to be correct.”