This makes it sound like the only people running targeted advertising would be the state-sponsored "hackers", but that isn't the case. Campaigns spend hundreds of millions of dollars on advertising, including digital, and one side still loses, and not always the side who spends less on advertising.

If you think it's so easy to swing elections with a few hundred thousand dollars of ads, you should definitely go into political strategy and prove it. They'll rain money down on you.