I very much respect what the right hon. Gentleman has just said. He has shared it with the House on a few occasions, and I absolutely understand what he says. Let me just say from the outset: no one can pretend that this deal is perfect in every sense. Inevitably, there will be some compromises with this deal and with a number of objectives, including, as we have just heard from the Prime Minister in Prime Minister’s questions, a need to ensure that the commitments in the Good Friday agreement are upheld. What he is referring to is if—and it is an if—the backstop arrangement kicks in. He is right to point to the legal advice, but it is worth keeping in mind the fact that that situation does not necessarily arise, even if there is no final deal on the future arrangement by December 2020, because there is an opportunity for alternative arrangements, including extending the implementation period. Even if the backstop arrangement kicked in, he referred to, it is, at a minimum—legally from the European Union’s perspective—not sustainable because it is done under article 50 of the European Union’s own rules.