I will be brief, Mr Speaker. I rise to speak to new clause 17, on which I intend to test the will of the House later today. I will not repeat what the right hon. and learned Member for Rushcliffe (Mr Clarke) said, but I very much appreciate his support for the new clause, as I do the comments made by the right hon. and learned Member for Beaconsfield (Mr Grieve). I tabled the new clause simply to inject some clarity, transparency and honesty in the debate. We already have a strong baseline of what the single market and the customs union provide the UK, and new clause 17 offers a straightforward way of comparing what we have now and what the Government come back with and put on the table before the House votes on the legislation to invoke our leaving the European Union. I also tabled the clause to prompt another discussion about the single market and the customs union. I intervened on my hon. Friend the Member for Nottingham East (Mr Leslie) to make the point that all these complicated issues-those relating to the island of Ireland are probably the most complicated-can be resolved by continuing to participate in the single market and the customs union. My key point, on which I hope Ministers will reflect and which Michel Barnier has already stated clearly, is that the red lines that the Government have set themselves are completely and utterly incompatible with the conclusion they wish to reach. Until they are honest about that with the public and this House, we will be unable to move forward. That is part of the reason why the EU keeps demanding from the UK an explanation of the final destination-what the UK actually wants from the process. The Prime Minister's Florence and Lancaster House speeches set out criteria that are completely and utterly undeliverable, given the red lines set. To take the customs union and the single market off the table so early as a red line was the wrong decision. We need the Government to put to both Houses a full and independently assessed analysis comparing the impact on the UK economy of two conclusions to this debate: staying in the single market and customs union and coming out on the basis of the deal the Government propose. The Government will resist the new clause, however, not out of principle, but because they know that any negotiated deal they come back with from the EU will not be as good as the deal we have today, and that will be saying to the public that that deal will make the country poorer. For any Government, that is a dereliction of duty. They should put their money where their mouth is, support my new clause 17 and put in black and white the consequences of this country's refusing, failing and no longer participating in the single market and customs union.