A promise is “assuring someone that something will happen”. Look it up in the dictionary. It’s there in black and white. Iain Duncan Smith, however, disagrees. When asked to reflect on the official Leave campaign’s shopping list of promises to the voters during the referendum campaign, Duncan Smith, one of the most vocal campaigners for Brexit, dismissively replied: “We just made a series of promises that were possibilities.”

We know that leading lights of the Leave campaign had had enough of experts; now they appear to have had enough of dictionaries.

It’s easy to see why. None of their impossible promises have been met and, as I suspect Mr Duncan Smith knows full well, never will be.

Where’s the £350m a week that Mr Duncan