Explain Please

Can someone--anyone--please explain to me why, despite Kerry's rise in nearly all the polls, Bush's electoral college lead keeps rising on Slate's Election Scorecard?

I mean, really.

And for anyone wondering about Lite Brite Veep Can Edwards, read Suellentrop's Slate article on him today: Edwards' Table Manners - How much advantage will Cheney gain from the debate format?

Sampler: "I was struck by how Edwards, during an interview with Fox News Sunday a few months ago, refused to discuss his consumption of copious amounts of Diet Coke, repeatedly smiling and saying, "We're not going to talk about that." An unimportant moment? Sure, but not a meaningless one."