Which presidential campaign first pioneered the use of data-driven merchandise testing, with real-time inventory adjustments based on supporter demographics and purchase patterns?

Campaign merchandise has become an essential part of political branding and fundraising efforts. From traditional buttons and yard signs to innovative digital products, political campaigns have increasingly sophisticated product development strategies. This poll tests your knowledge about a significant innovation in political campaign merchandise that changed how campaigns approach fundraising and supporter engagement through consumer products.

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Obama 2012 campaign
Trump 2016 campaign
Clinton 2008 campaign
McCain 2008 campaign