At a Target store in Brooklyn, employees recently voted for form a microunion. These employees, who work within Target's pharmacy, voted 7-2 in favor of the microunion. In 2011, the National Labor Relations Board ruled that employees could form microunions if members "share a common interest". In 2014 the microunion rule was extended to retail stores as a result of case involving Macys and a cosmetic workers.
See "Pharmacy Workers in Target's New York Store Win Right to Form Microunion", September 17, 2015