How do I put this? The chapter about David Cameron's son Ivan, in the new biography of the Tory leader, is intensely moving and very painful to read. His parents' patient, unsentimental devotion to this gravely disabled boy, lost in some unknowable world and without any hope of improvement or recovery, is much to their credit. I once wrote that Mr Cameron had never really been put through any major test in life. It is clear that I was quite wrong. There can be few harder trials than to watch a child suffer in this way. I am sorry I said it.
My point is that this has nothing to do with politics. It would be true whatever Mr Cameron's political position was, whatever party he led. It wouldn't - and shouldn't - make me or you vote for him. And, now that we know about it, I think it would be better if it was left at that. However, I fear that some of Mr Cameron's advisers may be under the misguided impression that some political use might be made of this sadness. Hostile interviewers are not allowed to question Mr Cameron. Friendly ones are invited to one of his three houses and introduced to Ivan. Mr Cameron should ignore these advisers. We know everything we are entitled to know about this private matter.
It's rare for a national columnist to admit they are wrong or say sorry. Credit to Peter Hitchens for doing so.