Former federal prosecutor Glenn Kirschner tore into Judge Aileen Cannon, the far-right Donald Trump-appointed jurist overseeing the former president’s classified documents case in Florida, who recently, in his words, “held a rare hearing” and “all but brought the case to a grinding halt.” The former president is charged with concealing highly classified national defense information in his Mar-a-Lago country club — perhaps the most straightforward of the four criminal cases Trump is charged with around the country. And yet, Cannon has put the case on ice, all but guaranteeing it cannot be heard…