Which retail analytics innovation was famously adapted by the Obama campaign in 2012, revolutionizing how political campaigns target voters?

Political campaigns have increasingly adopted sophisticated retail marketing techniques to reach voters. From data analytics to personalized messaging, modern political operations function like advanced retail operations. This poll tests your knowledge about a groundbreaking retail analytics technique that transformed political campaigning in recent years. Do you know which innovation fundamentally changed how campaigns target voters?

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A/B testing methodology for email fundraising appeals
QR code-based voter registration systems
Blockchain-based donor verification technology
Augmented reality campaign visualization tools