Calls for his resignation reached the highest levels of House leadership last week, as Brown and another accuser went public detailing his alleged misconduct.
Supporters held a rally in Detroit on Monday to call for Conyers to receive “due process” and for critics to stop pressuring him to step down.
Bloom said Grubbs’ affidavit is the first of several she will release describing allegations that Conyers sexually harassed employees and “covered up complaints.”