The chairman of the Judiciary Committee said during a radio interview that Christine Blasey Ford, who accused the judge of a decades-old assault, has not responded.
ref:https://www.washingtonpost.com/politics/grassley-says-mondays-hearing-will-be-limited-to-two-witnesses-kavanaugh-and-his-accuser/2018/09/18/301da074-bb48-11e8-a8aa-860695e7f3fc_story.html