Donald Trump and his aide Walt Nauta pleaded not guilty in federal court on several charges claiming that the former president kept classified documents at his private Florida club Mar-a-Lago and attempted to hide some of them from government authorities with the help of his staffers. Mr Trump, who waived his right to appear at the Thursday arraignment in Fort Pierce, Florida, entered his plea via his lawyers. The ex-president was initially charged with 37 crimes in a June indictment, to which he pleaded not guilty. The following month, prosecutors added another three charges in a superseding indictment. Mr Trump pleaded not guilty to those charges on Thursday. Mr Nauta attended the hearing on Thursday, where he also pleaded not guilty after being charged with six charges in the initial indictment and another two counts in the superseding filing. More follows...