(CNN)Tara Reade, a former Senate aide who has accused Joe Biden of sexually assaulting her in 1993, said in a new interview that the presumptive Democratic presidential nominee should withdraw from the 2020 race. "You and I were there, Joe Biden. Please step forward and be held accountable. And if you feel that you can address this in a real way, then you know and I know that you should step down," Reade said, in her first on-camera interview since Biden personally denied her allegation last week. "You should not be running on character for the president of the United...