Boris is a survivor. Without the "interesting times" we live in it would be a foregone conclusion that he wold be PM shoe-in.
Goddamit he has admitted drugs & adultery, and his campaign suffers no ill. Gove admits it and his campaign dips.

And I have come to the annoying conclusion it will run to prediction.

Despite: the Corbyn debacle
Trump surprise
& Brexshit.

Or Syrian status quo remaining, although with hindsight .....................