"Brigade" and flock to certain websites, Facebook and YouTube are two of the most common, and repeat certain phrases and post fake news stories from dubious sources endlessly, all the time. There are also huge fake numbers on twitter, and they do the same there -- brigade legitimate news sources and threaten journalists while spamming fake news everywhere.

I knew people who were way too smart for this nonsense falling for this garbage during the election until a colleague pointed out to them that their "sources" on Hillary's "corruption" were all Russian.

On Reddit they have quarantined the Trumpers to one area as they know very well that there are a huge number of bots and pro-Trump sock puppets and they overrun the legitimate news threads if they aren't contained and/or banned.

For putting that out there.

I believe awareness is the key.

on the election including primaries

They'll be back.

The Russian language has no articles. They don't have "a" or "the" in their language. It's always easier to leave something out when learning a language than putting something in that your language doesn't have, and always doing it in the right place. Also, Russian is declined. Where we would use a preposition to modify meaning, they just stick an ending on the word. "The border of the city" just becomes "Border city-a." City is город, and "the border of the city is граница города. A famous comedian telling the "Soviet" version of Little Red Riding Hood correctly imitated the Russian when Red's mother told her to take something to her grandmother. "Here is a basket full of goodies" became "Here is basket full goodies." Russian also does not have a verb for "to be" in the present tense. "Trump is a senile oaf" in Russian would be simply "Trump―senile oaf." Their natural inclination is to leave out "is" and "are."

Their senior professionals know all of this, but the people who sit in front of a computer all day are not all professional linguists, and to spot a Russian troll is often made easier if you know the grammatical mistakes that are typical of someone whose native language is Russian.

And I know just where to look.

(cough.. DI.. cough... )