My Lords, I support Amendment 142 in the name of the noble Lord, Lord Monks, to which I also have added my name. I can be brief, in view of the effective, coherent and measured way in which the amendment was introduced, and I will confine my remarks to the question of sovereignty.
On the face of it, the purpose of the amendment, which I support, is to involve Parliament more considerably in the process of Brexit. A recurring theme of those who argued that the United Kingdom should leave the European Union was that we wanted to make our own laws. I interpret that, and believe that I am entitled to do so, as being by implication an assertion of the sovereignty of Parliament. To begin with, that was not an implication recognised by the Government, who were forced to do so by the Supreme Court in the case of Miller.
I think it can be argued fairly that sovereignty carries rights and responsibilities and that both of these exist in parallel—some might put it slightly differently and say that it carries powers and responsibilities. But the negotiations that are being carried on by the Government are being conducted on the principle that the Government are answerable to Parliament. The responsibility for the decisions of the Government, therefore, is a consequence of the sovereignty of Parliament. Governments are not sovereign, although some think they are—and it is not difficult to think of Prime Ministers who thought they were sovereign as well. If the ultimate responsibility is Parliament’s, then Parliament has responsibility but no power. I am not sure what the antonym for a harlot is, but I hope I make the point that the sovereignty that we enjoy is sovereignty that carries responsibility.
The purpose of this amendment is to ensure that we give practical application to the sovereignty of Parliament by giving Parliament in these matters a power to
fashion the terms of the future of the United Kingdom’s relations with the European Union. To deny that power to Parliament is a breach of our sovereignty.