Special counsel Jack Smith’s office asked an appeals court on Saturday to deny Donald Trump’s argument that the former president is immune from criminal charges in his election interference case, saying that such a protection would “threaten to undermine democracy.” Federal prosecutors filed their brief with the DC Circuit Court of Appeals in response to Trump’s contentions that he’s immune under the Constitution because he was in office at the time and he was acquitted by the Senate in his impeachment trial over accusations that he tried to overturn election results, Politico reports. “Rather…