The Trump campaign, best known for its Tweets, used Facebook ad data analysis to target selectively and effectively – narrowing the fundraising gap and mobilizing support where it mattered, much more analagous to the Obama campaign. They applied a similar strategy to Obama 2008, and insisted to David Plouffe, the campaign manager, that their role was central to the whole ecosystem of the campaign: the fundraising, the marketing and, most important of all, the field organization. He agreed. They started at the beginning of the campaign cycle, with an