He’s stark, staring mad. You’ve only got to look at his face recently.
I know that it’s distasteful to mention, but there is a family history of mental instability.
My own family history shows the same "instability" - as probably do a few other's families...
... but I wouldn't like to be judged on that basis and so as a matter of principle, won't judge Johnson either on that basis, much as I detest the man.
Johnson is as Johnson does. He is not responsible for the 'sins' of his fathers He didn't choose his parents, nor the rest of the clan.