Analysis: One video shows how much damage Trump is doing to the idea of truth

CNN’s Donie O’Sullivan went to a Trump rally in Minnesota recently to ask attendees what was on their Facebook feeds, as a way to get a sense for the information — and, more often, misinformation — they were being fed by the social media giant.

CNN’s Donie O’Sullivan went to a Trump rally in Minnesota recently to ask attendees what was on their Facebook feeds, as a way to get a sense for the information — and, more often, misinformation — they were being fed by the social media giant.