It is with some hesitation that I involve myself in the negotiation that the Government are clearly attempting to conduct with their own Back Benchers. I simply want to observe that this is the single most important amendment that we will be discussing today and tomorrow in relation to the role that Parliament should and indeed must play in determining what kind of Brexit happens.
I simply do not accept the argument that the Secretary of State and other Conservative Members have advanced in trying to suggest that this proposal is somehow illegitimate or improper, or is intended to overturn the result of the referendum. Is it improper for this House to decide that in leaving the EU, we wish to remain within a customs union with it? Is it improper for this House to decide that we wish to remain in a single market, or to continue to have the European arrest warrant system, or that we want to co-operate in future with our friends and neighbours on foreign policy, defence and security? If the answer to all those questions is no, it is not improper, this Lords amendment is about giving Parliament the ability to ensure it can exercise that judgment when the time comes. It seeks to make it clear who will be in control when we come to the end of the process: the Government can go away and negotiate, but they will have to win the consent of the House when they return.
The Government’s attempts to neuter the Lords amendment will not work for a number of reasons that have been set out already. I say to the Solicitor General that, frankly, we do not have more time, which is why this is the moment when we have to make the choice. Secondly, as has been clearly pointed out, it makes no provision for what happens in the event of there being no deal. The House is aware of what the consequence of no deal would be for the border in Northern Ireland, our trade, the rights of British citizens abroad and EU citizens here, future co-operation on security and many other matters.