With a big mouth, plenty of buzz, and a yuuge media presence, does Donald Trump still need a data-driven get-out-the-vote operation to win in Iowa and New Hampshire? advertisement The real-estate developer has disrupted the presidential campaign like few other candidates in history and has shown an amazing ability–through the sheer forces of his personality and a populist movement receptive to his message–to survive the outrage over some of his offensive statements and to dodge bullets fire...

Political data gathered on more than 198 million US citizens was exposed this month after a marketing firm contracted by the Republican National Committee stored internal documents on a publicly accessible Amazon server. The data leak contains a wealth of personal information on roughly 61 percent of the US population. Along with home addresses, birthdates, and phone numbers, the records include advanced sentiment analyses used by political groups to predict where individual voters fall on h...