https://techcrunch.com/2018/11/05/facebooks-election-interference-problem-exponentially-worse-on-eve-of-midterms-study-suggests/

An analysis of political advertisers running extensive campaigns on Facebook targeting users in the United States over the past six months has flagged a raft of fresh concerns about its efforts to tackle election interference — suggesting the social network’s self regulation is offering little more than a sham veneer of accountability.

Dig down and all sorts of problems and concerns become apparent, according to new research conducted by Jonathan Albright, of the Tow Center for Digital Journalism.