"The IRA later used social media accounts and interest groups to sow discord... through... "." The campaign evolved from a generalized program designed... to undermine the U.S. electoral system... The IRA' s operation also included the purchase of political advertisements on social media in the names of U.S. persons and entities, as well as the staging of political rallies... To organize those rallies, IRA employees posed as U.S. grassroots entities and persons and made contact with Trump supporters and Trump Campaign officials... Section II... details... the Russian social media campaign."
January 1, 1970
https://en.wikiquote.org/wiki/Mueller_Report