Mills has denied wrongdoing and refused to step down from Congress despite the longstanding accusations, which also include stolen valor and financial misconduct.
Cole Tomas Allen faces four counts in what prosecutors say was a plot to kill President Trump and other top officials at the White House Correspondents' Association dinner.
White House Correspondents' Dinner shooting suspect pleads not guilty in federal court NBC NewsCole Allen pleads not guilty to trying to assassinate Trump CNBCWashington dinner shooting suspect pleads not guilty BBCMan charged in White House correspondents' dinner attack pleads not guilty PoliticoPress dinner gunman pleads not guilty to attempting to assassinate Trump CNN
