Update: Dec. 18
The company that provided the report seems to be New Knowledge. If you "like" a message from a bot, you'll see more of it. From the CNN deport it's pretty obvious that the presentation from the bots is very biased and extreme. Another report comes from the Computational Propaganda Project at Oxford University.
But there is also some evidence that Russians trolled more intellectual speakers and concluded that they didn't "care" about people whom elites considered as anti-intellectual and impressionable, and would not pay attention to what was happening. They exploited "cultural Marxism" techniques from the past. They are exploiting the idea that many "elites" feel "air-gap" protection from paying much attention to the feelings of those "beneath them" and having much to do with them. It's the "basket of deplorables" issue.