Cambridge Analytica first supported Cruz against Trump. So there is little hard evidence that it is such a powerful weapon. Bannon is on the board of the company and these articles feel like company-fed buzz.
I led Mercer's old team at IBM for a few year and we also developed NLP/ML-based profiling technology. They work better than chance but not much better (there is lots of published literature on the subject) and definitely not enough to make a big difference from just feeding fake news to everybody equally.
I led Mercer's old team at IBM for a few year and we also developed NLP/ML-based profiling technology. They work better than chance but not much better (there is lots of published literature on the subject) and definitely not enough to make a big difference from just feeding fake news to everybody equally.