A US judge on Monday dismissed the case against former president Donald Trump concerning the retention of secret government documents. Judge Aileen Cannon, who was appointed by Trump, said her decision was based on doubts about the legality of the appointment of the special investigator. She is a federal judge in the US District Court for the Southern District of Florida, based in Miami. Trump was indicted in the document affair last year, one of several criminal cases brought against him. In this case, he is accused of unlawfully storing highly sensitive information from his time as president…