Noam Scheiber has an excellent post on the fairly arbitrary manner in which the press deploys its considerable power over presidential primary campaigns. He notes this particularly with regard to the Huckabee campaign, and it's worth saying that this could start to play an especially large role if, say, Huckabee finishes a reasonably close second to Mitt Romney in the Iowa caucus. Will that be covered as "Romney wins, on to New Hampshire!" or will it be covered as "Huckabee Surging, Chaos on the Religious Right!"? The choice of narratives could have a big impact on the ultimate outcome, and it will be made by a fairly small number of reporters and editors who mostly refuse to even acknowledge that they're actors in the process and not just observers of it.

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