Which digital innovation, first widely deployed during Barack Obama's 2008 presidential campaign, revolutionized political retail strategy by allowing micro-targeting of voters?

Political campaigns have evolved dramatically in their approach to voter outreach and engagement. From traditional door-knocking to sophisticated digital strategies, the way politicians connect with constituents has transformed through innovative product and service deployments. This trivia tests your knowledge about a groundbreaking digital innovation that changed how political campaigns operate in the modern era.

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Campaign-specific mobile payment systems
Data analytics and voter modeling software
Augmented reality campaign offices
Blockchain-based voting verification