Dr Julian Lewis: According to that excellent website TheyWorkForYou, the Prime Minister has assured the House on no fewer than 74 occasions that we will be leaving the EU on 29 March. Will the Secretary of State confirm that in no circumstances will that date be postponed?

[The Secretary of State for Exiting the European Union (Stephen Barclay): As my right hon. Friend says, the Prime Minister has made that commitment crystal clear  – and how can one ever dispute what is said on TheyWorkForYou?]