There's been a lot of talk in this campaign about Barack Obama's problem with working class white voters or rural voters. But these claims are both inaccurate because they are incomplete. You can look at states like Virginia, Ohio, Pennsylvania and other states and see the different numbers and they are all explained by one basic fact. Obama's problem isn't with white working class voters or rural voters. It's Appalachia. That explains why Obama had a difficult time in Ohio and Pennsylvania and why he's getting crushed in West Virginia and Kentucky.

If it were just a matter of rural voters or the white working class, the pattern would show up in other regions. But by and large it does not.

In so many words, Pennsylvania and Ohio have big chunks of Appalachia within their borders. But those regions are heavily offset by non-Appalachian sections that are cultural and demographically distinct. West Virginia is 100% Appalachian. If you look at southeastern Ohio or the middle chunk of Pennsylvania, Obama did about the same as he's doing tonight in West Virginia...

Let me offer a series of overlapping explanations. First, some basic demographics. It's widely accepted that Hillary Clinton does better with older voters, less educated voters and white voters. These demographics perfectly match West Virginia -- and, more loosely, the entire Appalachian region. A few key points from tonight's exit polls demonstrate the point: 4 out of 10 voters were over 60 years of age. 7 out of 10 lacked a college degree -- the highest proportion of any electorate in the country. And 95% of the electorate was white...

As I alluded to earlier, this was the origin of West Virginia, which was originally the westernmost part of Virginia. The anti-slavery, anti-slaveholding upcountry seceded from Virginia to remain in the Union after Virginia seceded from the Union. Each of these regions was fiercely anti-Slavery. And most ended up raising regiments that fought in the Union Army. But they were as anti-slave as they were anti-slavery, both of which they viewed as the linchpins of the aristocratic and inegalitarian society they loathed. It was a society that was both more violent and more self-reliant.

This is history. But it shapes the region. It's overwhelmingly white, economically underdeveloped (another legacy of the pre-civil war pattern) and arguably because of that underdevelopment has very low education rates and disproportionately old populations.

For all these reasons, if you're familiar with the history, it's really no surprise that Barack Obama would have a very hard time running in this region.