Here’s Wolf Blitzer’s current poll question

Do you think any of the Democratic candidates for president can beat George W. Bush?

I honestly don’t know what this means, so I figure I’d throw it over to the LazyWeb. It seems to me that if I answer ‘Yes’, I’m implying that I believe that any of the Democratic candidates for president can beat George W. Bush. And that’s false since I know Sharpton and Kucinich can’t. (At least if we ignore distant possible worlds they can’t.) But if I answer ‘No’ I’m implying that I don’t believe that any of the Democratic candidates for president can beat George W. Bush. And that’s false since I know Dean, Clark, Kerry etc can all handily whip Bush.

The problem is that ‘any’ behaves differently in positive and negative environments. Maybe this is just a presupposition failure, as in “Have you stopped voting Republican?” but I don’t remember seeing it discussed before.