His failure to deny smoking cannabis at school seems to provide confirmation that Cameron has a bit of a past. Does it matter? Frankly, I doubt it. Some of the wilder Tories will doubtless regard this as further proof that the end of the world is a step closer, but I think at the moment they'd probably accept Cheech or Chong as their leader if there was a chance of winning.
I can't say it affects my view of Cameron. Rich kid smokes dope at school is hardly a shock story. It might even help his image with the younger voters.
That might shift if some stories were to come out from later in life - say university or his (brief) career in media (the destruction of ITV Digital).
What does Gideon Osborne think?
Unity puts in his fourpennorth here.