WWJ auto analyst John McElroy says he's stunned by a vote in which workers at two Mercedes-Benz factories in Alabama voted against joining the United Auto Workers union.  McElroy talked with Tracey McCaskill (Photo credit: Elijah Nouvelage/Getty Images. CHATTANOOGA, TENNESSEE - MARCH 20: A United Auto Workers (UAW) lawn sign sits on the ground near a Volkswagen automobile assembly plant on March 20, 2024 in Chattanooga, Tennessee. The United Auto Workers (UAW) filed for a union vote for the 4,000 hourly workers at the Chattanooga plant in an effort to begin to organize nonunion automobile plants across the nation.)