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Another way of thinking about this is: we don't have a Moneyball for political narratives yet, but if we end up getting one then a lot of the same repeated talking points we get every election cycle (Romney's got the momentum! There must be invisible missing voters!) may fade to black, and that challenges the attitudes and identities of the more traditional journalists. This may be especially magnified if you think that thew new corridor is someone insulated from inputs outside their self-fulfilling/self-sustaining political narratives.
I am a professor of Communication studies, and I study politics for a living but have also published on sports and American identity, since it seems like a lot of your emailers are often specialized/expert sorts.