I'll never forget listening to NPR about that (I was out in the mountains and that was the only radio station I could get) because they also had a segment about how Russia "rigged" the election by buying Facebook ads, to the tune of something like a few million USD at best, maybe a few hundred thousand I forget. Out of the many 10s of billions over all spent on political ads. Definitive proof that Russia bought the election. Through a minor purchase of ads. On Facebook. Yep.