What's the swing vote?

[Smacker]

I grew up in the UK, and in general elections there, the focus was on how the voters have 'swung' as a percentage, from the last election. In other words, as results came in from various constituencies, the swing vote was an extremely reliable indicator as to how the whole country was moving.

I'm not seeing that here, which is why I'm not seeing statistics that show Kerry is going to win, but I know he is anyway.