https://www.reuters.com/article/us-facebook-cambridge-analytica/trump-consultants-harvested-data-from-50-million-facebook-users-reports-idUSKCN1GT02Y

Data analytics firm Cambridge Analytica harvested private information from more than 50 million Facebook users in developing techniques to support President Donald Trump's 2016 election campaign, the New York Times and London's Observer reported on Saturday.