In a new twist in the federal election interference case against former President Donald Trump, Special Counsel Jack Smith has submitted a mystery document, hidden from both the public and Trump's lawyers. The filing was made in the U.S. District Court for the District of Columbia, where Judge Tanya Chutkan is overseeing the case. A Wednesday court notice shows that Smith filed a document titled "Government's Classified, Ex Parte, In Camera, and Under Seal Notice...