There's been a recent surge in discussion of conspiracy theories related to 2015's Jade Helm military exercise, following an interview where former CIA/NSA director Michael Hayden asserted that Kremlin social media propaganda encouraged hysteria over the topic on the right.
This chart shows the time of the first tweet mentioning the recent #JadeHelm story from the prominent accounts that discussed it. The majority are news organizations and left-wing users. Let's go back to 2015 and see what Twitter activity around Jade Helm looked like then. . .