Culinary Union members file into a university arena to vote on whether to authorize a strike Tuesday, May 22, 2018, in Las Vegas. A potential strike would affect 34 casino-hotels. A majority yes vote would not immediately affect the casinos, but it would give union negotiators a huge bargaining chip by allowing them to call for a strike at any time starting June 1. (AP Photo/Isaac Brekken)
LAS VEGAS — Las Vegas casinos could watch tens of thousands of employees walk off the job for the first time in more than three decades after union members voted to authorize a strike at any time starting June 1, a move that could cripple the city’s world-famous resorts.