Sorting Of Communities Contributes To Polarizing Politics

Michael Bitzer

We read all the time about how “polarized” our nation is, and we see it in the “red versus blue” categorization, the way that the U.S. Congress behaves, even the animosity that seems to be driving the two parties at the local level against each other.

Over 60 years ago, the American Political Science Association released a report that said that the two major parties needed to be more “responsible” in the governing process.  In fact, the report argued that an active opposition is “most conducive to responsible government” and that “when there are two parties identifiable by the kinds of action they propose, the voters have an actual choice” (page 19).

So now we have parties that are truly different, and is it any surprise that we have the polarization now?  But there has to be a starting point, a foundation, for where that polarization begins. 

Some scholars of our nation’s politics believe that it starts from the top down — that the elites within the parties have sorted themselves into ideologically coherent divisions, and that the masses have followed right along with them.

But can we see the impact of two very different political parties at the local level?

In running some analysis on the recent redistricting of Mecklenburg’s County Commission districts, I came across an interesting analysis of the various precincts in the Great State of Meck. Of the county’s 195 precincts, only 13 could be considered “toss-up” precincts, ones that could potentially go either Democratic or Republican when voting for president.

For the vast majority —137 precincts — the analysis showed that the one political party tends to dominate. There 72 precincts that are “likely Republican” in their presidential voting patterns, while another 65 are “likely Democratic.” 

The way that I arrived at this analysis was to take the past two presidential elections in the precincts and look at the differences between the two party’s votes, in comparison to the county averages for both party’s presidential candidates.  So, in 2004, John Kerry won Mecklenburg with 52 percent of the vote, while four years ago, Obama won with 61 percent of the vote.  There’s your baseline. 

Then, I took each precinct and compared the performance of the presidential candidates against the county baseline. For example, in Precinct 56, Kerry won with 97 percent of the vote, and Obama captured 99 percent of the vote.  

By taking the differences between the precinct’s performance compared to the county (45 and 38) and then averaging the two years together, you come up with a Partisan Voting Index for that precinct. For Precinct 56, it was 41 percent for the Democrats, or D+41.

Using a classification of anything over +10 on either side as “likely” to vote for that party, those between +3 and +10 as “lean” and anything below +3 as “toss-up” precincts, you can assign each precinct into one of these categories to see the voting behavior of Mecklenburg County by its various precincts:


What stands out to me is the sheer number of “likely” precincts that are either heavily Democratic or heavily Republican, based on presidential voting patterns.  With so very few “toss-up” precincts, Mecklenburg voters seem to have sorted themselves into politically segregated areas.

So what does this tell us?  Several years ago, Bill Bishop and Robert Cushing wrote “The Big Sort: Why the Clustering of Like-Minded America is Tearing Us Apart.” They argue that, even though the nation is becoming more diverse, where Americans live is becoming more homogenous: that we live in areas where our neighbors think, live, and vote like we do. 

By looking at this phenomenon from the ground up, Bishop contends that Americans have “sorted” themselves into like-minded communities, and that by doing so, we have found ourselves in our current polarized state of “mixed company moderates; like-minded company polarizes. Heterogeneous communities restrain group excesses; homogeneous communities march toward the extremes.”

As North Carolinians head into the primary election booth on May 8, it would be worth remembering that when we have conversations with folks of the opposite party, ending with people shaking their heads and saying “why don’t those folks just understand where I’m coming from,” it could be because they don’t live in a like-minded precinct as we do.

Therefore, voters have no reason to understand where the other side is coming from. And then we are shocked when we complain that our politics is so polarized.



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One response to “Sorting Of Communities Contributes To Polarizing Politics

  1. Robert Long View

    It appears that the polarization of politics is based along the lines of income taxes. I think this is the result of thirty years of Supply-Side Economics and the resulting income inequality. Supreme CT rulings have skewed the politics to the point where we now have a Plutocracy. America’s middle class is gone.
    Our American Political Will and democratic Common Good is broken by the lobbyists’ big money (lobbyist/lawmaker ratio is at least 5:1) Americans are no longer Citizens – we are consumers to be sold products. This is the best politics that special interest money can buy! Witness the Americans for Prosperity “Real Solutions Road Tour” In Charlotte today. You can bet they will be rabble rousing everywhere you see the “Red” color on you’re the “Great State of Meck” political map. FOX-TV News will not be far behind – this is their demographic base –and fired up no less!
    I no longer view the TEA Party as grassroots that co-opted the Republicans, but rather see it as the Armey vision for the tactile strong arm of the GOP Good Old Boys Club. According to the objectionist, Ayn Rand (Patron Saint of the TEA Party idealogues) the man with the biggest pile of Money Wins and for this segment of the electorate it is ONLY Winning that matters. They fully intend to dominate you — and use any means that will justify that end. Reminds me of the Queen song “We Are The Champions.” This would make an excellent campaign theme song for Romney-Ryan 2012 Presidential race, no? Anyway, I Thank You – My Vent from a RED north county.

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