I would bet my left ball that the republicans employ astroturfing businesses to spam the social networks with their stories and form a narrative. They get peop

I would bet my left ball that the republicans employ astroturfing businesses to spam the social networks with their stories and form a narrative. They get people to control multiple personas on the same computer and post the same story from the point of view of those personas. If a person encounters the same story a couple of times, they tend to believe it.