London (CNN) One of the first uses of a trove of Facebook data on tens of millions of Americans that has thrown Facebook and Cambridge Analytica into crisis this week was in 2014 by a super PAC run by John Bolton, President Donald Trump's new national security adviser, two former Cambridge Analytica employees told CNN. The Bolton super PAC and Cambridge Analytica signed a $454,700 contract in the summer of 2014. The contract, obtained by CNN, outlined how the data firm would provide the super PAC "behavioral microtargeting with psychographic messaging." Psychographic profiles are used to predict people's interest, values, and opinions -- Cambridge Analytica used the predictions to target voters with advertising. Kogan told CNN that he provided Cambridge Analytica with data on 30 million Americans.

Source: CNN March 23, 2018 22:30 UTC