Perhaps no swing state is understood as poorly as Pennsylvania. You can’t read an article about Pennsylvania without hearing about the blue collar workers critical to Obama’s chances. Pennsylvania is often depicted as a slightly more Democratic version of Ohio, where the difference between the two states can be entirely captured by the population difference between Cleveland and Philadelphia.
Superficially, the comparison between Ohio and Pennsylvania seems apt. There are considerable demographic similarities between the two states, as both states hold average incomes and relatively white populations, especially for big states. However, even a cursory glance at the 2008 exit polls and the results reveals that Pennsylvania and Ohio are very different states, with important electoral consequences.
I could write some sort of narrative to describe the issue, but I think numbers will get to the point faster, so just reflect on this:
|
Share of All Voters (%)
|
|
PA |
OH |
USA |
| White No College |
37 |
50 |
35 |
| White Yes College |
44 |
33 |
39 |
|
|
|
|
|
Obama’s Share of the Vote (%)
|
|
PA |
OH |
USA |
| White No College |
42 |
44 |
40 |
| White Yes College |
52 |
49 |
47 |
|
|
|
|
|
Percent of All Obama Voters
|
|
PA |
OH |
USA |
| White No College |
28 |
43 |
28 |
| White Yes College |
41 |
42 |
31 |
Well, Pennsylvania doesn’t exactly look like a particularly white working class state, does it? Looks pretty average to me. While just 39% of white voters in Ohio hold a college degree, 54% do in Pennsylvania, compared to 52% nationally. Ohio seems to fit its reputation.
These patterns are evident in the results, not just the exit poll. If one limits the scope of inquiry to the white counties (>70% white) where Obama won in 2008, it becomes clear that Obama is far more dependent on white working class voters in Ohio than Pennsylvania.

The blue counties in southeastern Pennsylvania are the educated Philadelphia suburbs. In the well-educated counties around Columbus, Cincinnati, and Cleveland, Obama didn’t even win. This isn’t a new phenomenon. Unlike the eastern (and western) coastal cities, Democrats don’t win in similarly affluent and educated suburbs around Cleveland, Cincinnati, Indianapolis, Chicago, and Milwaukee (Detroit is somewhat of an exception).

To compensate, Democrats need to win white working class areas to win midwestern states. Obama did so in 2008, mainly with victories in northeastern Ohio, the state’s Democratic base. For most of the last century, that used to be the case in Pennsylvania as well, but Democrats have lost much of the support they once held in the working class towns of western and central Pennsylvania.

Indeed, Pennsylvania’s history is largely responsible for current misconceptions about the state, as most things you hear about Pennsylvania were pretty true 25 years ago, when today’s journalists were beginning to gain expertise in politics, and still somewhat true before Obama.
As Democrats have made gains in the big suburban counties outside of Philadelphia, Democratic candidates can win with smaller and smaller shares of the white working class vote in Pennsylvania, and that has big implications for 2012. National polls suggest that Obama is holding relatively firm among college educated voters, but suffering heavy losses among white voters without a college degree. Should this trend manifest in Ohio and Pennsylvania, as we should assume it will, then Obama’s chances in Ohio will be imperiled to a much greater extent than in Pennsylvania, where white working class voters are a far smaller share of the Democratic coalition.
Take an extreme example. Suppose that Obama lost a full 25% of his white supporters without college degrees, but sustained no losses at all among college educated voters or minority voters of any education level (unlikely, I know). In this scenario, Obama would fall narrowly behind in the national popular vote and would get routed in Ohio, losing by 6.5%. Despite this historically bad performance among white working class voters, Obama would still win Pennsylvania by 2.5%.
It’s worth reflecting on how extreme this scenario really is. If Obama lost 25% of the white working class vote in Pennsylvania, he would finish with just 31.5% of the white working class vote – worse than he fared among white working class voters in some southern states where they tend to be evangelical, rural, and less likely to participate in a union (33% in NC, 32% in TN).
In this sense, Pennsylvania is much more reminiscent of Colorado or Virginia than Ohio; it’s a state where Romney will need to make gains in educated suburbs to ultimately prevail. For that same reason, I’m always surprised if someone thinks Pennsylvania “Leans Democratic” while Colorado and Virginia remain in the toss-up category. If someone believes that Romney can make big gains in the suburbs outside of Denver and Washington, why don’t they believe that Romney can make commensurate gains outside of Philadelphia? In fact, if you use a simple proportional/uniform swing based on national polling, you’d expect Virginia, Colorado, and Pennsylvania to vote quite similarly.
Like most states, Pennsylvania has a large white working class population. Unlike states that ought to be considered white working class states, Pennsylvania’s white non-college voting population is commensurate with the national average. The affluent suburbs outside of Philadelphia offered Obama record support in 2008, allowing Obama to win a decisive 10% victory despite tepid support from white voters without a college degree. Like the “new coalition” states, and unlike the Midwestern states, Obama can still win Pennsylvania if he holds educated suburban voters.