https://www.recode.net/2017/9/28/16378104/twitter-senate-house-russia-investigation-facebook-presidential-election-fake-news

Twitter has found roughly 200 accounts believed to be tied to some of the same Russian-linked sources that purchased ads on Facebook in an attempt to provoke political tensions during the 2016 presidential election.

Twitter informed congressional investigators of its findings in a series of briefings in Washington, D.C., on Thursday — and the revelations are sure to stoke further speculation on Capitol Hill that Kremlin agents sought to co-opt social media platforms to stir social and political unrest in the U.S.