Why Data Wonks Are Wrong About Presidential Elections: Ron Klain

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Nov. 15 (Bloomberg) -- A little less than a year before the2012 election, it’s a good time to ask whether presidentialcampaigns matter.

Do all the ads, speeches, mailings, debates, onlineactivity and rallies really change minds? Or is the outcome ofthe election the product of underlying fundamentals that arescarcely affected by such efforts?