2020 campaign update: Targeted ads are definitely following you

"Let me give you an example, because this is what I ran through with Grace Briscoe of Centro. I said, “Look, if I’m sitting on my couch and binge-watching HGTV, are campaigns using the fact that I also — using that same internet connection — browsed on the Washington Post or The New York Times to serve me ads?” And she’s, like, “Absolutely.” And this matters because you think that whatever you’re seeing in ads and on TV might give you sort of a breadth of opinion and hear from different candidates, whoever is paying the most money. But what it really might mean is that you kind of end up in your own little echo chamber."

Read more in Marketplace or listen to the podcast segment.