Portside

With 1.3 million U.S. employees—more than the population of Vermont and Wyoming combined—Walmart is by far the nation’s largest private-sector employer. It’s also one of the nation’s most aggressive anti-union companies, with a long history of trying to squelch unionization efforts. “People are scared to vote for a union because they’re scared their store will be closed,” said Barbara Gertz, an overnight Walmart stocker in Denver.