Being creeps for years eventually catches up with you. Here's what the DNC types are ticked about: Cambridge Analytica. That said, it is ultimately over-hyped:

the real question is how well these new projects work. Yes, advertising can sell a product. 'News' can change opinions. But they can only do so to a certain degree or for a limited time. Eskimos do not need refrigerators. Counterinsurgency campaigns usually fail. The Internet companies claim that advertising on their channels works extraordinary well because they can categorize the 'eyeballs' they attract by the data their users 'voluntarily' supply. Cambridge Analytica claims it can efficiently manipulate whole nations on a similar base. These companies sell snake-oil. Their claims are made out of self-interest. I for one doubt them.