Which digital payment innovation first allowed U.S. presidential campaigns to accept small donations under $20 online at scale, revolutionizing grassroots fundraising?

Throughout political history, campaign fundraising has evolved dramatically with technology. From traditional mail-in donations to sophisticated digital platforms, the tools used by political campaigns reveal fascinating insights into both technological adoption and voter engagement strategies. Test your knowledge about the innovative payment systems that transformed how political campaigns raise money and connect with supporters.

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ActBlue's recurring donation platform (2004)
PayPal's campaign integration system (2008)
Square's mobile card reader for in-person events (2012)
Apple Pay's one-touch political donation feature (2016)