WASHINGTON (Reuters) -A U.S. appeals court on Friday largely upheld a judge’s gag order that bars Donald Trump from publicly assailing prosecutors, court staff and potential witnesses in a federal criminal case accusing the then-president of illegally trying to overturn his 2020 election loss. A three-judge panel of the U.S. Court of Appeals for the District of Columbia Circuit kept most of the restrictions imposed by the original order, but lifted the prohibition on Trump personally criticizing Special Counsel Jack Smith, who is overseeing the prosecution. “We agree with the district court th…