Tesla Inc. CEO Elon Musk may soon be heading for a courtroom battle with company shareholders who claim that they have lost billions of dollars because of Musk’s 2018 tweet on taking Tesla private. A ruling in favor of the shareholders would allow them to focus at trial solely on connecting Musk’s allegedly false statement to their stock market loss. Investors are asking the district judge to decide on key legal issues by himself, without putting them to a jury. Meanwhile, U.S. District Judge Edward Chen is skeptical about Musk’s claim that the tweet was true. Musk has defended himself, saying Saudi Arabia’s sovereign wealth fund had agreed to support his attempt to take the company private, and hence his tweet about it was true. Last week, during a hearing, Musk asked a federal judge to nullify a subpoena from securities regulators and throw out a 2018 court agreement in …