Source: The Washington Post - Link
I, like Doocy, was intrigued by where this number came from Thursday. I, unlike Doocy apparently, actually did 30 seconds of research on it. That’s all the time it took to find the publicly available study — which even has the number Psaki cited in its title, “The Disinformation Dozen” — from the Center for Countering Digital Hate. The study was picked up by the likes of NPR and others in May.
Spying at folks on Facebook? No. This was all publicly available information.