 Judge Cannon, a Trump appointee, hasn't yet ruled on the request or scheduled a hearing. The brief says a key issue Cannon will have to decide is how much of the former president's alleged misconduct was official and how much was unofficial. Greg Allen, NPR News, Miami. Lawyers for Elon Musk are asking a federal judge to dismiss a lawsuit brought by former Twitter shareholders. As NPR's Bobby Allen reports, Musk denies he duped investors in his acquisition of the social media sites.