Elon Musk plans to appeal to the U.S. Supreme Court over a Securities and Exchange Commission (SEC) consent decree that he has called a 'muzzle' on his free speech. The decree arose from Musk's 2018 tweet about having 'funding secured' to take Tesla private. The decree was part of a settlement where Musk and Tesla each paid $20 million fines, Musk gave up his role as Tesla's chairman, and agreed to let a Tesla lawyer approve some tweets in advance.