The US polling industry has been suffering a crisis of insight over the past decade or so; its methods have become increasingly bad at telling which way America is leaning. ... The classic pollster’s technique known as random digit dialing, in which firms robo-dial phone after phone, is failing, because an ever-dwindling number of people have landlines. ... whereas a survey in the 1970s or 1980s might have achieved a 70 percent response rate, by 2012 that number had fallen to 5.5 percent, and in 2016 it’s headed toward an infinitesimal 0.9 percent. And finally, the demographics of participants are narrowing: An elderly white woman is 21 times more likely to answer a phone poll than a young Hispanic male. So polling samples are often inherently misrepresentative. ... Today’s polling landscape appears so fraught that Gallup, long the industry leader, opted out of presidential horse-race polls this year; the reputational risk of being wrong was simply too high. Civis, on the other hand, promises a paradigm that could rescue American politics from confusion. ... Today, campaigns realize they have to look elsewhere for their intelligence, which has caused a major change in how the political industry functions. In the past, an entire campaign’s data and infrastructure would go poof after Election Day. Now Civis and similar firms are building institutional memory with permanent information storehouses that track America’s 220 million–odd voters across their adult lives, noting everything from magazine subscriptions and student loans to voting history, marital status, Facebook ID, and Twitter handle. Power and clients flow to the firms that can build and maintain the best databases of people’s behavior over time.