It may have had only a tiny effect but considering the election could have swung either way with 100,000 votes in the right states so who knows. https://medium

It may have had only a tiny effect but considering the election could have swung either way with 100,000 votes in the right states so who knows. https://medium.com/startup-grind/how-the-trump-campaign-built-an-identity-database-and-used-facebook-ads-to-win-the-election-4ff7d24269ac https://medium.com/startup-grind/how-the-trump-campaign-buil... https://www.wsj.com/articles/donald-trumps-new-attack-strategy-keep-clinton-voters-home-1476221895 https://www.wsj.com/articles/donald-trumps-new-attack-strate... https://www.bloomberg.com/news/articles/2016-10-27/inside-the-trump-bunker-with-12-days-to-go https://www.bloomberg.com/news/articles/2016-10-27/inside-th... a.) identifying Clinton voters and sending negative Clinton ads based on race/gender/policy reversals(by Clinton) to make them consider voting for anyone else, or not voting b.) identifying voters who were on the fence and sending them ads for Trump + identifying geographic clusters in swing states and sending Trump there for campaign rallies