Which presidential campaign pioneered the use of a sophisticated big data analytics system called 'Project Narwhal' to target voters with unprecedented precision?

The 2008 and 2012 U.S. presidential elections marked a turning point in how political campaigns leverage data analytics. One campaign's unprecedented use of big data and micro-targeting changed political marketing forever, creating a model that campaigns around the world would later adopt. Test your knowledge of this pivotal moment in political campaign history that merged technology with voter outreach.

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Barack Obama's 2012 re-election campaign
Mitt Romney's 2012 campaign (which used a system called 'Project ORCA')
Hillary Clinton's 2016 campaign (which used a system called 'Ada')
Donald Trump's 2016 campaign (which used Cambridge Analytica)