I have a pet theory about electability that holds true for all presidential elections reaching back to 1900: whoever wins a majority of the 10 states bordering the Mississippi River wins the election.

Minnesota, Wisconsin, Illinois, Iowa, Missouri, Kentucky, Tennessee, Arkansas, Louisiana, Mississippi.

Will it hold true this year? I have no idea. So many of these traditional rules no longer apply -- e.g., to win the presidency you have to win the New Hampshire primary. This year we're hearing a lot about the importance of West Virginia to Democratic nominees for president. In prior years we've heard a similar admonition about the importance of Ohio to Republican nominees.

Recently I read Kevin Hayden's "electability analysis" that considered the most recent polls in each state. Let's use that yardstick to analyze the Mississippi River basin states. Caution: we're so far out from November (or even August) that the polls today might be meaningless.

That said...

So, as it stands now, the region breaks for McCain, 7-3. Clearly, Obama has his work cut out for him.

Which states can Obama pick off to at least get to 6-4?

In summary: Obama needs three of the following four states -- AR, TN, MO, WI -- to make it to the White House. Can Obama pull it off? Or is this, at least, the year when the region breaks for the loser?

What's your take on it?

UPDATE: The notion of Bill Clinton tooling around the back roads of Arkansas making speeches off the bed of a pickup truck, begging for absolution, appeals to me at this point. How about you? Think he'd do it? Nah. Me neither.