I rise not only to move amendment (a) to Lords amendment 51, but to support the other Lords amendments that we are considering today. May I start by thanking the other House for its work? In particular, I wish to record our thanks to our Labour Lords team, led by Baroness Hayter and Baroness Smith, who have worked extremely hard to improve this Bill. The amendments in this group this afternoon, as with yesterday, cover a number of crucial issues, such as enhanced protection for EU-derived rights, environmental safeguards and the charter of fundamental rights. In many respects, that should not be controversial, and I will return to those issues later on. Let me start with Lords amendments 1 and 2. These amendments, if upheld here, would require a Minister to lay before both Houses of Parliament a statement outlining the steps taken in the article 50 negotiations to negotiate our continued participation in a customs union with the EU. I do not suppose that it is the making of a statement that the Government object to; it is the negotiation of a customs union with the EU. In fact, so determined are the Government not to accept a customs union with the EU that they have gone to extraordinary lengths to dream up alternatives. When the so-called partnership agreement and the so-called maximum facilitation options first saw the light of day last summer, nobody really took them seriously, not even the Brexit Secretary. Within two weeks, he was describing the customs partnership as blue-sky thinking. Thus, when the Prime Minister resurrected them in her Mansion House speech earlier this year, many of us, including myself, were genuinely surprised. Since then, it has become increasingly apparent that neither option is workable, that neither is acceptable to the EU and that neither will get majority support across this House. The Foreign Secretary calls the customs partnership “crazyâ€. The Business Secretary says that the maximum facilitation option would cost thousands of jobs in manufacturing. It is no wonder that a Cabinet peace summit is planned for July. The proposal in Lords amendments 1 and 2 that the Government should seek to negotiate a customs union with the EU as part of the future arrangement is a sensible one for many reasons.