Confessions of a congressman: 9 secrets from the inside - Vox

Confessions of a congressman: 9 secrets from the inside - Vox: The only way political parties can successfully gerrymander is by knowing how you vote. Both parties have destroyed your privacy at the polling booth. Thanks to election rolls, we don't know exactly whom you voted for, but we get pretty damn close. We know exactly which primaries and general elections you have voted in, and since there are so few realistic candidates in most elections, down or up ballot, we might as well know exactly who you voted for. Marry that data with magazine subscriptions, the kind of car you drive, and all sorts of other easily available consumer information that we've figured out how to use to map your political preferences, and we can gerrymander and target subdivisions, houses — even double beds. Republicans want the male vote; Democrats the female vote.