What evidence do you have that the predominant source of trending information is motivated state-level actors? That is an incredibly bold statement, and the framing you chose is such that there needs to evidence to the contrary, rather than evidence to support such a claim.
Edit: A bunch of responses are mistakenly thinking I am denying the presence of Twitter bots created and operated by state actors. I'm not. I'm arguing with the incredibly bold statement that they are the PREDOMINANT SOURCE of trending information.