Tesla, GM, the UAW, Musk, Kasich and the Ohio plant Trump wants to save

Tesla Chief Executive Elon Musk raised hopes again on Thursday that he could ride to the rescue of a threatened General Motors car plant at the center of a political storm about auto jobs, and GM replied, saying the Ohio factory’s fate depends on union talks next year. Musk suggested in a Twitter exchange with outgoing Ohio Gov. John Kasich that he would consider acquiring GM’s Lordstown small-car factory in Warren, Ohio…