It is difficult to overstate the constitutional difficulties raised by the Repeal Bill

MPs today begin debating what was once grandly dubbed the “Great Repeal Bill.” The European Union (Withdrawal) Bill, as it is now more soberly known, is intended to avert legal catastrophe when Britain leaves the EU, by ensuring that the vast body of EU law currently applicable in the UK largely remains in place. So, in spite of its moniker, the Bill does not actually repeal very much. It gets rid of the European Communities Act 1972, which currently gives domestic…