That is the point I wanted to touch on. I thank the noble Lord. I have gone through the Conservative manifesto very carefully and I cannot find any commitment not to keep Parliament fully consulted on the process of the negotiation. It seems to me that we are not in serious Salisbury convention territory here.
The substantive arguments against this amendment, rather than the politically cynical argument against it advanced by the noble Lord, Lord Howarth, is that it weakens the Government’s hand in negotiation. I know from my past career that that is completely untrue. It is the reverse of the truth. I spent quite a long time unsuccessfully trying to negotiate air services liberalisation with the United States. The arguments for it were easy. Even I could win the argument, but I could get nowhere because of the power of parliament used as a negotiating weapon by American negotiators: the power of the Senate to refuse. When you win the argument with the American, he says, “You make a very good point, but we’d never get it through on the Hill.” I do not believe that Parliament as the Wizard of Oz would be a terrible threat to the Government, provided they had explained what they were trying to do. I know that being obliged to keep Parliament informed is an extremely good weapon in the negotiator’s hand.
I come back to a more general point, which has been made many times in these debates by the noble Lord, Lord Bridges, and which was made by the noble
Lord, Lord Barwell, in his remarkable maiden speech which we all greatly admired. Honesty—not pretending that you can have it all and admitting that there are trade-offs to be had—goes with transparency, and it seems to me that this perfectly reasonable means of ensuring a degree of transparency to Parliament, which was perfectly reasonable and acceptable to the Government in October, would be consistent with trying to bring public opinion to understand some of the difficulties and trade-offs that lie ahead in the negotiation.