Barack Obama is an American politician who served as the 44th president of the United States from 2009–2017. Barack Obama’s political legacy, O’Neil shows, is deeply entwined with the era of Big Data. For instance, his campaign team used analytics experts to create micro-targeting campaigns in the run-up to his 2012 reelection. And, in his second term, Obama passed legislation aimed at creating a new system of college rankings. In these ways, his presidency overlapped with the rise of computer algorithms dictating how people navigate the world.