If Somebody Could Elucidate to Me Why These Two Electoral Vote Maps Are Different, I Would Greatly Appreciate It...

AFAIK, Talking Points Memo and Nate Silver are the only people who actually aggregate poll information in a sensible way.

I would dearly love to know why Nate sees Iowa as an 85% Obama chance state and Wisconsin as a 94% Obama chance state as of today while Josh has them both a tossups…