FieldWorks calls itself a grassroots political firm founded in 2001 to work with "progressive advocacy organizations, federal and state Democratic campaigns, Democratic Party organizations, labor unions, and ballot initiative campaigns." In ads, it recruits hourly workers for field work. It has said only that it is cooperating with investigators in Pennsylvania and has "zero tolerance for fraud."In 2012, FieldWorks' voter registration efforts in Ohio sparked controversy when election officials flagged hundreds of dubious registration forms filed in Hamilton County, including one from a voter registered as "John Adolf Hitler."