Feinstein, in her letter to Grassley, which was sent on Sunday, argued that the hearing should be delayed until the FBI could investigate allegations from Ford and Deborah Ramirez.

Ford alleges that during a high school party in the early 1980s Kavanaugh pinned her to a bed and tried to remove her clothes. Ramirez told The New Yorker in an interview published Sunday that Kavanaugh exposed himself to her when they were both students at Yale.

Kavanaugh has denied both allegations and Grassley added in his letter that he didn't think Ramirez's allegation would impact Ford's testimony.

"The obvious connection between the two claims is that Senate Democrats hid both allegations of misconduct from the Committee and the public," he added.