Mr Johnson has now declared that, over the course of the last nine years plus, he was not in agreement with austerity.
Now I have a little list of those who have vowed and declared on here that it was and that the far-right Tories, whom Mr Johnson is now disavowing, were right.
What other things will it be okay for him to say "not me Guv" to and, with careful newspeak, convince Tory voters that he was never part of it, while Tory Mayor, or while voting for this as an MP or agreeing with it as a member of the cabinet and then voting for it.
Just how much of our history will you accept being rewritten in this way?