Also see Russia is winning its war of disinformation | Axios; on a related note, see The Steele Dossier: A Retrospective | Lawfare
"The Russians aimed particular energy at activating conservatives on issues such as gun rights and immigration, while sapping the political clout of left-leaning African American voters by undermining their faith in elections and spreading misleading information about how to vote. Many other groups — Latinos, Muslims, Christians, gay men and women, liberals, Southerners, veterans — got at least some attention from Russians operating thousands of social media accounts.New report on Russian disinformation, prepared for the Senate, shows the operation’s scale and sweep | Washington Post
The report also offered some of the first detailed analyses of the role played by YouTube, a subsidiary of Google, and Instagram, owned by Facebook, in the Russian campaign, as well as anecdotes about how Russians used other social media platforms — Google+, Tumblr and Pinterest — that have received relatively little scrutiny. The Russian effort also used email accounts from Yahoo, Microsoft’s Hotmail service and Google’s Gmail."