I'm not claiming they've deliberately swung elections yet. But do you doubt Facebook or Google could easily do it? They self-evidently have the data needed to i

I'm not claiming they've deliberately swung elections yet. But do you doubt Facebook or Google could easily do it? They self-evidently have the data needed to identify swing voters in key districts and the reach to control a large part of the media those people are exposed to. If they haven't done it (yet), it's only because they've decided not to (so far).