Workers voted on decertifying unions 1,600 times in the past decade. Teamsters are the most common target.

Workers voted on decertifying unions 1,600 times in the past decade. Teamsters are the most common target.

Like hundreds of her coworkers, Kira Junod never voted to join the Teamsters. The massive Lamb Weston plant in American Falls, Idaho, where Junod works, is one of the world's largest suppliers of frozen french fries and other potato products. The employees there voted decades ago to unionize. Now, even with Idaho's right-to-work laws that allow workers to opt out of paying dues, the local Teamsters union was the only entity allowed to negotiate …