There's a tragic irony to Johnson's love of Churchill.

When Churchill became prime minister, he said: "I have nothing to offer but blood, toil, tears and sweat". He was honest about the severity of the situation and what it entailed. He didn't pretend everything would magically be alright.

Johnson's approach is the exact opposite. He runs from bad news like a dog from fireworks. He invents nonsense timetables by which everything will be fine.

He assumes the public need constant good news and sacrifices his own trustworthiness in order to provide it - it'll be over in six weeks, by Easter, by summer, by Christmas, by February, whatever.

It's equivalent to Churchill using his first speech as PM to insist the war will be over by Christmas.