May I start by paying tribute to their lordships for the diligent and considered manner in which they so thoroughly scrutinised the Bill? In particular, I pay tribute to Labour colleagues in the other place for the extensive effort they put into securing many of the cross-party amendments that we are debating today. This Bill began life as a fundamentally flawed piece of legislation. Many of its original flaws stem, I suspect, from the fact that at the time it was being drafted, the Government had yet to fully work through precisely how withdrawal would have to take place. Indeed, some of us still remember the Secretary of State's glib dismissal of the need for any transitional arrangements after 29 March next year, and the misplaced magnanimity with which he made it clear that he would only consider granting transitional arrangements to “be kindâ€ to the EU. But as with so many aspects of the Brexit process-even if not yet in every respect-reality has slowly caught up with the Government, just as the very real deficiencies in this Bill have now been subject to thorough scrutiny in the other place. If anything has vindicated the Opposition's decision to vote against this legislation on Second Reading, it is the succession of defeats that the Bill has faced in both Houses, as well as the scores of amendments that the Government themselves have had to table. That said, after successive defeats in the other place and the latest round of concessions from Ministers, some of the worst aspects of the Bill have been ameliorated. As we only have three hours of debate on the first group of amendments, I intend to touch only briefly on most of the Lords amendments towards the end of my remarks, and focus instead on what we believe to be the critical issue in this first group. That is the issue of what form parliamentary approval of the withdrawal agreement should take. Many of the amendments passed in the other place are of great significance in terms of their constitutional implications and how they might shape what is left of the Brexit process. It is deeply disappointing that the programme motion only allocates 12 hours to debate them.