Quote of the day from John Crace, in The Guardian:
Johnson used to at least be able to give a passable imitation of being Boris Johnson. Now he can’t even manage that. The gags and the mannerisms that used to be his calling card, now just fall flat. A one-trick pony whose one trick everyone knows. The surface has been stripped bare to reveal a core of molten need. Someone who craves attention and fears he wouldn’t exist without it. Someone whose narcissism leaves him devoid of empathy. Incapable of either giving or receiving love.
There's really not much more to add to that. I think it true that he is a man devoid of empathy. Despite which he is the person forecast to be our next prime minister.