https://www.theguardian.com/technology/2017/oct/30/facebook-russia-fake-accounts-126-million

Ahead of Senate testimony this week, company says 80,000 posts were directly received by 29 million Americans and shared much more widely

Russian-backed content reached as many as 126 million Americans on Facebook during and after the 2016 presidential election, according to the company’s prepared testimony submitted to the Senate Judiciary Committee ahead of hearings this week.