



Months after President Trump took office, Russia’s disinformation teams trained their sights on a new target: special counsel Robert S. Mueller III. Having worked to help get Trump into the White House, they now worked to neutralize the biggest threat to his staying there.

The Russian operatives unloaded on Mueller through fake accounts on Facebook, Twitter and beyond, falsely claiming that the former FBI director was corrupt and that the allegations of Russian interference in the 2016 election were crackpot conspiracies. One post on Instagram — which emerged as an especially potent weapon in the Russian social media arsenal — claimed that Mueller had worked in the past with “radical Islamic groups.”

Such tactics exemplified how Russian teams ranged nimbly across social media platforms in a shrewd online influence operation aimed squarely at American voters. The effort started earlier than commonly understood and lasted longer while relying on the strengths of different sites to manipulate distinct slices of the electorate, according to a pair of comprehensive new reports prepared for the Senate Intelligence Committee and released Monday.