Which digital marketing innovation was first effectively leveraged in a U.S. presidential campaign by Barack Obama in 2008, revolutionizing political fundraising?

In the high-stakes world of political campaigns, marketing strategies can make or break a candidate's chances. Campaign teams spend millions on sophisticated techniques to reach voters effectively. This trivia question tests your knowledge about a groundbreaking marketing innovation that changed how political campaigns operate. Think you understand the evolution of political campaign marketing? Put your knowledge to the test!

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Microtargeted social media advertising based on voter data analytics
Automated text message donation system with one-click contributions
Blockchain-based transparent donation tracking platform
Augmented reality campaign rally experience apps