A Cambridge University psychology professor harvested personal data from millions of Facebook users and then passed on that information, much of which was obtained without the users consent, to a political strategy company with links to President Donald Trump’s campaign, Steve Bannon and the billionaire conservative campaign donors Robert and Rebekah Mercer, according to reports from The Guardian and The New York Times. Aleksandr Kogan, 32, worked with Cambridge Analytica, a Mercer-backed fi...