UK’s Withdrawal from the EU

The Chancellor of the Duchy of Lancaster is extremely generous and I also take his word very seriously. He did not quite answer my earlier question about the legislation on the extension that he and the Prime Minister have made repeated commitments to bring forward. What would be the form of that legislation? Would it be possible, for example, for the dates to be changed? As my right hon. Friend the Member for Leeds Central (Hilary Benn), who chairs the Exiting the European Union Committee, also asked, how would such disputes be dealt with?