Democratic Sen. Dianne Feinstein of California listens during a July 12, 2023 Senate Intelligence Committee hearing.Mariam Zuhaib/AP Dianne Feinstein alleges that the trustees for her husband's estate have engaged in "financial elder abuse." Katherine Feinstein, who filed the suit on behalf of her mother, alleges that Feinstein is being cut out of millions. The suit is the latest episode in a fight over the late-billionaire Richard Blum's estate. Trustees overseeing Sen.