Interesting reading! I am naive about data-mining. I wasn't damning Trump but the impact of the process on political decision-making. I also now have a better understanding of the importance of a Bannon on managing an election effort.
Interesting observation in this article how the Republicans completely missed the data-mining boat against Obama's efforts. Did any of other Republican candidates use this data-mining process leading up to their election in 2016 or just Trump?