https://www.recode.net/2017/9/28/16381296/senate-congress-warner-twitter-russia-fake-news-2016-election

Sen. Mark Warner delivered a full verbal lashing of Twitter on Thursday for providing “inadequate” details to Congress about the misinformation spread on its platform by Russian sources during the 2016 presidential election.

Hours after Twitter briefed Warner’s aides and others on the Senate Intelligence Committee — a panel that is investigating the Kremlin’s potential meddling in U.S. politics — Warner said he felt that Twitter did not grasp the seriousness of the panel’s probe.