I rise to speak to amendment 386, which has cross-party support and which I tabled late last night. The Minister said that it was somehow introducing “chaosâ€ into this process. With the greatest respect, after a fortnight in which we have seen the Foreign Secretary, the International Development Secretary, the former Defence Secretary, the current Defence Secretary and the Cabinet Secretary all subsumed in controversies, I think the Government are doing quite well on the chaos front without any help from me. Also, the idea that taking the exit date out and putting it into a different Bill would create chaos when, just five days ago, Ministers did not want it in any Bill at all, makes the Government's argument look rather silly. The amendment would require Parliament to vote on the terms of withdrawal through primary legislation before Brexit day. That would mean that exit day would be set in UK law not in this Bill but in a future Bill, either in the withdrawal agreement and implementation Bill that the Government announced yesterday or, if there is no deal at all, through an alternative Bill setting out the terms of departure and presumably whatever implementation plan would be needed in those circumstances. The purpose of the amendment is not to dispute the Government's intentions about the timing of exit day; it is simply to ensure that there is a proper parliamentary and democratic process before we get to that date. The central focus is not the date itself but a requirement on the Government to do as they have promised and set out a meaningful vote for Parliament in advance of that date. The amendment would also ensure that Parliament could properly respond, whatever the outcome of the Government's negotiations, rather than being inadvertently timed out if things were to go badly wrong. Yesterday, we learned from the Government that there would be a second Bill to implement the withdrawal agreement, and that is welcome. That was the subject of other amendments that the right hon. and learned Member for Beaconsfield (Mr Grieve) and I had tabled because we were concerned that Parliament should not give the Executive a blank cheque through this Bill on the implementation of a withdrawal Bill that had not yet happened. Rather less welcome was the Government's admission that the legislation might not actually happen before Brexit day. Even less welcome was the Brexit Secretary's admission that the vote on the withdrawal agreement would simply be a take-it-or-leave-it vote, and that therefore if the Government negotiate a bad deal, if they have no implementation plan in place or if other things go wrong along the way, Parliament would simply have to accept that or choose to have no deal at all. Under the Government's proposals, Brexit day would be embedded in primary legislation through this Bill, and it would therefore become legally and constitutionally possible for Ministers simply to let us drift towards exit day without Parliament being able to insist on any kind of implementation preparations or any kind of plan at all. Such a concentration of power in the hands of the Executive would be unacceptable. No legislature should ever accept that: certainly not this legislature right now when we were given a hung Parliament by the electorate less than six months ago; and certainly not our Parliament, whose sovereignty has been such a key issue throughout the debates on the referendum. The amendment would strengthen the democratic process around Brexit and ensure that Parliament could vote on the terms of withdrawal, whether there was a deal or not, before exit day. It would implement the Government's commitment to a meaningful parliamentary vote. If everything goes according to the Government's plans and promises, if they get the timetable they want for the transition agreements being agreed in the early part of next year and the withdrawal plans agreed by the autumn, and if we get the kind of deal that the Government have promised, with all the benefits that it will bring, all that the amendment would do would hold the Government to that by implementing their intentions and their timetable. It would hold the Government to what the Brexit Secretary said yesterday was his primary plan for the timetable. It would hold Ministers to that plan on the face of the Bill. It would also prevent the Government from delaying the withdrawal agreement legislation beyond the withdrawal date. It links the timing of exit to the terms of exit in the parliamentary process. It would prevent Parliament from being timed out because it would give Parliament the final say. If the Government's plans go wrong-I hope they will not-it also gives Parliament a say in how the country should respond. For example, if we end up with no deal at all, if we run out of time-I hope that will not happen-or if the whole thing goes belly up, it gives Parliament a role. It allows for a debate on whether the Government should go back to the negotiating table or just walk away. It allows for a debate about the timing of Brexit day. It allows Parliament to debate and decide, rather than just throwing up our hands and leaving it to Ministers-rather than just drifting along.