@AC ... Re: Cambridge Analytica
Chum, hate to break it to you... Trump won because he was the lesser of two evils.
You think Hillary would have been better, her book is proof that she's a nutter and we dodged a bullet. While I didn't vote for Trump, I will say that if he was given a chance, he'd be doing a better job. The issue is that he's an outsider and wants to drain the swamp. So those who made their money in DC and feed from the swamp, don't want him around.
He gets blasted by the Media even when he's doing the right thing and after the fact, it comes out that he did the right thing yet no mea culpa or correction from the MSM. I mean, I kid you not... 90% of MSM is negative. Fox News which ran stories is closer to 55-45 where 55% was negative. (And they're being labeled 'pro Trump')
Trump won because of the fact he went to the rust belt and won the states that Obama won. Clinton avoided them and instead went to fund raisers in California.
The DNC's treatment of Bernie Sanders had more of an impact on voters than any ads that could have run on Facebook. Her illegal activities which are still being investigated today... are more of a reason than any 'pro Trump' ad on FB.
As to using 'Big Data' for political fundraising... The Republicans are far behind what Obama did in 2012 out of Chicago. Something Clinton didn't come close to doing either.
BTW, Clinton's crew ignored the Big Data analytics that was done... ;-)