Which innovative market research technique was first widely adopted by political campaigns during Barack Obama's 2008 presidential run?

Behind every successful political campaign lies sophisticated market research that shapes messaging, targets voters, and allocates resources effectively. Campaign strategists rely on various research methodologies to understand voter sentiment and behavior. Test your knowledge about the market research techniques that power modern political campaigns and how they've evolved in the digital age.

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Psychographic microtargeting using social media data
Focus groups with undecided voters
Automated telephone polling
Door-to-door canvassing with demographic tracking