https://www.theverge.com/2017/10/26/16553554/tesla-labor-complaint-fired-factory-workers-elon-musk

The United Auto Workers filed a complaint today to the National Relations Board on behalf of hundreds of Tesla factory workers who were fired from the assembly plant last week. The UAW posted a copy of the complaint made against Tesla on its website, which alleges that pro-union workers were unfairly targeted.

The UAW says the complaint was made on Wednesday to the Oakland offices of the National Relations Board. The union claims the recent culling of several hundred Tesla employees included many who were involved in a pro-union movement at the Fremont assembly plant, and included those who wore pro-union shirts and stickers.