Judge holds Roger Stone associate in contempt for refusing to testify before grand jury in Russia investigation. Andrew Miller, a former aide to longtime Trump confidant Stone, had fought and lost a court battle to quash a subpoena from special counsel Robert S. Mueller III to testify to the grand jury. Earlier this month, a judge issued a 93-page opinion saying Miller must testify. But prosecutors told the court Friday that Miller still refused to comply. This is a developing story and will be updated.