“The Mueller report detailed numerous episodes in which Trump may have obstructed justice, including his suggestion that former FBI director James Comey drop an investigation of Michael Flynn, his short-lived national security advisor, his subsequent firing of Comey, his efforts to fire the special counsel himself, and his many public comments exhorting witnesses not to cooperate. But the Mueller team stopped short of recommending criminal charges, citing in its report the Justice Department’s official position that a sitting president cannot be indicted. Trump has denied obstructing justice, calling the whole Mueller investigation a “hoax.”The prohibition against indicting the president would no longer apply, and a Biden Justice Department would theoretically be free to revive the obstruction investigation and bring charges against Trump.”