Which presidential campaign was the first to use targeted Facebook advertising with Cambridge Analytica's data-driven approach that sparked major privacy debates?

The technology behind political campaigns has evolved dramatically over the decades, transforming how candidates connect with voters. From early radio addresses to today's AI-powered voter targeting, campaign tech has become increasingly sophisticated. This trivia question explores a pivotal moment in the history of political campaign technology that changed how candidates reach and engage with voters.

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Donald Trump's 2016 campaign
Barack Obama's 2012 campaign
Hillary Clinton's 2016 campaign
Mitt Romney's 2012 campaign