Data Crunchers Who Helped Obama Win

A large portion of the cash raised online came through an intricate, metric-driven e-mail campaign in which dozens of fundraising appeals went out each day. Here again, data collection and analysis were paramount. Many of the e-mails sent to supporters were just tests, with different subject lines, senders and messages. Inside the campaign, there were office pools on which combination would raise the most money, and often the pools got it wrong. Michelle Obama's e-mails performed best in the spring, and at times, campaign boss Messina performed better than Vice President Joe Biden. In many cases, the top performers raised 10 times as much money for the campaign as the underperformers.

Chicago discovered that people who signed up for the campaign's Quick Donate program, which allowed repeat giving online or via text message without having to re-enter credit-card information, gave about four times as much as other donors. So the program was expanded and incentivized. By the end of October, Quick Donate had become a big part of the campaign's messaging to supporters, and first-time donors were offered a free bumper sticker to sign up.

Predicting Turnout
The magic tricks that opened wallets were then repurposed to turn out votes. The analytics team used four streams of polling data to build a detailed picture of voters in key states. In the past month, said one official, the analytics team had polling data from about 29,000 people in Ohio alone - a whopping sample that composed nearly half of 1% of all voters there - allowing for deep dives into exactly where each demographic and regional group was trending at any given moment. This was a huge advantage: when polls started to slip after the first debate, they could check to see which voters were changing sides and which were not.

It was this database that helped steady campaign aides in October's choppy waters, assuring them that most of the Ohioans in motion were not Obama backers but likely Romney supporters whom Romney had lost because of his September blunders. "We were much calmer than others," said one of the officials. The polling and voter-contact data were processed and reprocessed nightly to account for every imaginable scenario. "We ran the election 66,000 times every night," said a senior official, describing the computer simulations the campaign ran to figure out Obama's odds of winning each swing state.

"And every morning we got the spit-out - here are your chances of winning these states. And that is how we allocated resources."

... Data helped drive the campaign's ad buying too. Rather than rely on outside media consultants to decide where ads should run, Messina based his purchases on the massive internal data sets. "We were able to put our target voters through some really complicated modeling, to say, O.K., if Miami-Dade women under 35 are the targets, [here is] how to reach them," said one official.

... In August, Obama decided to answer questions on the social news website Reddit, which many of the President's senior aides did not know about. "Why did we put Barack Obama on Reddit?" an official asked rhetorically. "Because a whole bunch of our turnout targets were on Reddit."

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