Donald Trump’s Jan. 6 case in D.C. should be televised, and if the court won’t do it, Congress perhaps could, a legal expert argued on Friday. Former federal prosecutor Joyce Vance, who earlier in the day sounded the alarm about one “particularly disturbing” part of Trump’s recent court filing, decided to ditch the current popular news stories and talk about court transparency. “There’s a lot of legal news brewing right now. All of it is important, and all of it matters. We will get to it over the next few days,” Vance wrote. “But tonight, I want to switch gears and ask an important question a…