Politics & Government In New Political Warfare, 'Armies Of Video Trackers' Swarm Candidates 1:31pm May 26, 2016 News Politics Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2016 Fresh Air. To see more, visit Fresh Air. 300x250 Ad More Fresh Air Arts Watch a tense romantic triangle play out on the tennis court in 'Challengers' by Justin Chang Books Arts Novelist John Green says OCD is like an 'invasive weed' inside his mind by Terry Gross 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate