“Shares in Tesla are heading for a sharp fall in the U.S. as investors fear Elon Musk’s launch of a new political party will present further problems for the electric carmaker,” The Guardian reports.“Tesla stock was down more than 7% in pre-market trading on Monday, threatening to wipe approximately $70 billion off the company’s value when Wall Street opens.”Bloomberg: Tesla has a problem — and it’s not just the Elon Musk backlash.