This week, hundreds of thousands of Haitian migrants faced an uncertain future as the Trump administration fought in federal court to revoke their legal status and deport them. But despite these threats, the largely immigrant union workers at a JBS beef plant in Greeley, Colorado, many of them recent arrivals from Haiti, still voted on Wednesday by an overwhelming margin to strike over poor working conditions in what could become the first sanctioned walkout at a major meatpacking plant in decades.