(Washington, DC) -- Field organizers for U.S. Senator Amy Klobuchar's [[KLO-buh-char]] presidential campaign are unionizing. Klobuchar's campaign announced that a group of field organizers has designated Iowa-based Teamsters Local 238 as its bargaining representative. Her campaign manager announced that Klobuchar is pro-union and supports organized labor. The union and campaign will negotiate a collective bargaining agreement.