Money GM CEO Mary Barra: Tesla CEO Elon Musk doesn’t want unionized workers January 11, 2019Nathan Bomey and Jamie L. LaReau, USA TODAYComments Off on GM CEO Mary Barra: Tesla CEO Elon Musk doesn’t want unionized workers General Motors CEO Mary Barra dismissed the possibility that Elon Musk's Tesla could acquire one of GM's soon-to-be-idled U.S. factories.