Not that I think Cambridge Analytica had or could have much to do with any election in a functional enlightened democracy, but there was always something sleazy about Facebook.
https://www.theguardian.com/technolo...cked-democracy
The history of Facebook needs to be examined more closely, even if it's just speculation.
Zuckerberg himself ain't the most politically astute and in fact has no interest in politics so someone else, probably a conservative Harvard prof, set up Facebook for Zuckerberg, at least the key details -- much like those who included back doors on smart devices. The goal may have been surveillance or more likely, trying to bleed off or delay the democratizing effect of social media.
This theory could be completely wrong. Just the false notions grandfathered in over decades alone might explain Facebook.
Bret Cahill