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Confusion among caucus organizers over how to use the app also seemed to contribute to the problem.
The firm behind the app reportedly is Shadow, an affiliate of ACRONYM, a Democratic nonprofit founded in 2017 to educate, inspire, register, and mobilize voters, according to its website. Shadow started out as Groundbase, a tech developer co-founded by Gerard Niemira and Krista Davis, who worked for the tech team on Clintons campaign for the 2016 Democratic nomination.