The Sun), with a No 10 source claiming he is the one behind a string of recent stories damaging to Boris Johnson. Cummings has since written a denial on his blog, saying he is not behind the recent leaks. But it is not surprising that No 10 have come to that conclusion. As I wrote in November when he left No 10, Cummings’s strategic use of the media has been the defining characteristic of his career, despite him once claiming to me that “approximately 100 per cent of all media is irrelevant to my goals”. “If you join the dots, it looks like it’s coming from Dom,” a No 10 sour...