Shares of Tesla Inc. were downgraded Tuesday by a longtime bull, who expressed concerns about increased focus on governance issues surrounding the electric-vehicle giant’s Chief Executive Elon Musk that could make a “tough” EV-demand environment even worse.The stock TSLA, +2.28% bounced 1.3% in morning trading, after closing the previous session at a nine-month low.Daiwa Capital Markets analyst Jairam Nathan cut his rating to neutral, after being at outperform for the past two years. He lowered his price ta ...