I fail to see how this is helpful to us. In fact, I fail to see how it happens at all. Why would Kerry poll better over the weekend? It makes no sense.
Don't say it is because Democrats are more likely to be home as to where Republicans are more likely to be out becuase that is hogwash. Have you been to the mall lately or Walmart on a Satruday afternoon? Have you seen who is out shoppnig at these places?
For what it's worth, I don't buy into the weekend theory either, at least not based on the explanation that Republicans are more likely to be out of the house than Democrats. I hear this claim all the time, but I am not sure that I have seen any hard empirical evidence to support it. Indeed, Time and Gallup often poll partially over weekends, yet they seem to have no problem finding Republicans willing to talk to them.
In this case, we know Kerry had a great Saturday in this poll because the guy who runs the poll said so. On Sunday he reported that Kerry had an enormous upward spike in the Saturday sample.
As for the general idea that 'Rats poll better on weekends, it's just one of those things we've heard reported for years. Rasmussen says it's a myth, yet, like clockwork, Kerry closes in on Bush over each weekend, and then Bush starts to open a lead again in mid-week after the weekend days scroll off.