A US judge on Monday dismissed the case against former president Donald Trump concerning the retention of secret government documents. Judge Aileen Cannon said her decision was based on doubts about the legality of the US Justice Department’s appointment of the special investigator in charge of the case. Trump – who survived an assassination attempt at a campaign rally in Pennsylvania on Saturday – said the decision was a “first step” that should be “followed quickly by the dismissal of all the witch hunts.” Writing on his social media platform Truth Social, Trump called the various criminal c…