European Union (Withdrawal) Bill

The noble Lord speaking for the Opposition held the office of Secretary of State for Northern Ireland with distinction. He knows that during all that time he never shared joint authority. Will he comment on why an amendment may be carried by a number of his noble friends that will, for the first time, enshrine in legislation—this is the proposal—that we change the policy, which has been agreed between parties during all these years, that we do not have joint authority in Northern Ireland?