It looks like it was from The Economist and YouGov - I falsely remembered it being Pew. Here's a WaPo article with a summary and a link to the raw data:
Misleading mainstream media, IMO. I'm conservative and the headlines about "election hacking" actually duped me until I had the time to read a thorough article about it.
I totally agree with you there. Most online news articles use those annoying click-bait titles and try to make the story seem bigger than it is (in a misleading way). Even weather.com does that crap with weather stories.
Do you think it's mostly from misleading mainstream news stories? Or from smaller outlets (social media, celebrities, memes, etc)?