With the consent of the House, I rise to speak to amendment 59 in the name of my right hon. Friend the Member for Ross, Skye and Lochaber (Ian Blackford) and other right hon. and hon. Members, and to amendments 9 and 56 and new schedule 1. Before I speak in more detail about amendment 59, may I commend the hon. Member for Nottingham East (Mr Leslie) for the amendments that he submitted? What he has done is to remind us of what a complete sham this entire process has been. Almost 90% to 95% of the way through these eight hours of debate, the Government who had promised, day after day after day, to listen to the debate and to take appropriate effective action still have not corrected some of the glaring deficiencies in their own Bill, the most serious of which, perhaps, is the fact that we still do not have any statutory guarantee that the Northern Ireland peace process, the Belfast agreement and all that that implies, will be protected in law. If the Government cannot be trusted to bring forward amendments to correct such a desperate deficiency in their own legislation, how can they expect this House to trust them with the draconian and unprecedented powers to use ministerial directive to correct deficiencies in domestic legislation after we have left? Amendment 59 seeks to ensure that the withdrawal agreement can only be implemented when we also have an agreement to remain in the EU single market and customs union. Let us be honest: everybody knows that, on a free vote of this House, there would be a substantial majority in favour of remaining in the single market and the customs union. My plea this evening will be for all of those who know that that is in the best interests of their constituents to set aside the demands of the party Whips and to go through the Lobby in support of this amendment. We can win this vote this evening if all those who know that it deserves to win are able to set aside the demands of the Whips and vote for it. We can take a decision tonight that will keep us away from the cliff edge, not just for two years but for very much longer. I am very grateful to colleagues from the Liberal Democrats, Plaid Cymru and the Green party who have signed this amendment. Although there have been no signatures from Labour Members, either from the Front Bench or the Back Benches, I appeal to all of them to support this amendment today. Let me first deal with the question of the constitutional or democratic legitimacy of the amendment. One of the very disturbing aspects of the referendum debate, which has continued all the way through the process since then, has been the degree of hostility and open hatred that has been created against anyone who speaks, or even thinks, against the wisdom of the Government, the newspaper editor, the blogger or whoever. I have a good bad example: just a day or two ago, a group of MPs who had the temerity to go over to Europe to meet Michel Barnier were denounced as traitors-treachery with a smiling face-by one well known bloggist. Apart from the fact that such inflammatory and violent language has no place in any supposedly respectful debate, I want to remind the House of some facts of our membership of the single market-facts that I appreciate will be very uncomfortable to some Members, but that are still utterly incontrovertible. It is a matter of fact that the people of the United Kingdom have never voted in a referendum about membership of the single market or the customs union. This House had the opportunity when the European Union Referendum Bill was on its way through Parliament. We could have decided to ask questions about the customs union and the single market, but the House and the Government chose not to. Having chosen not to ask the question, none of us-including me-has any right to decide that we know what the answer would have been. It is a matter of fact that it is possible to be in the single market and the customs union without being a member of the European Union. Hon. Members will have different views as to whether it would be wise, appropriate or in our best interests to do so, and they have every right to debate the benefits of membership of the single market and the customs union. But anyone who insists that it cannot happen is not engaging in debate; they are engaging in fiction. We have had far too much fiction in this debate already-from both sides, it has to be said-as the right hon. and learned Member for Rushcliffe (Mr Clarke) mentioned earlier. The decision to leave the single market was a unilateral political decision taken by the Prime Minister without any prior consultation with the people or with Parliament. It cannot, under any circumstances, be described as an inevitable consequence of the vote to leave the European Union. Finally, it is a matter of fact that when the Conservative party fought on a manifesto that said it wanted to stay in the single market, it won an overall majority of seats in this place-the only time in the last 25 years that it has managed such an achievement. It is also a fact that the Conservatives lost that overall majority two years later, when they stood on a manifesto saying that they wanted to take us out of the single market. Nobody can claim that that is clear evidence of a popular democratic mandate to stay in the single market, but it certainly blows to smithereens any nonsense that there is any mandate for us to leave. I am conscious of the need for brevity from me as well as from others, so I will not go into the full and detailed argument for staying in the single market, as that would take us from now to Brexit day, if not beyond. However, the right hon. and learned Member for Rushcliffe referred to the latest analysis produced by the Scottish Government, entitled “Scotland's Place in Europe: People, Jobs and Investmentâ€. I certainly accept his caveats that we cannot be sure that the forecasts and projections in it are accurate. They are certainly not intended to be precise or definitive.