From the moment the presidential race started taking shape, it was clear that along with being a contest between two candidates, the election would also be a contest between two different approaches to winning. Team Romney and its super PAC allies signaled that they would raise a ton of money to run a traditional campaign heavy on television advertising. Team Obama chose to build an elaborate ground operation—a big advantage in 2008—that would rely heavily on technology to register and turn out the vote.

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