Russian-linked Facebook ads: https://www.theverge.com/2017/11/1/16593346/house-russia-facebook-ads
The thing where Russian propagandists were literally playing both sides of the same event should give us pause.
We know that Putin's whole game is stoking the fires of white nationalism and isolationist politics, so what's the play with getting counter-protesters to come out? Bigger protest overall means more media coverage? Lending the appearance of legitimacy to embedded provocateurs?