Senate Judiciary Chairman Chuck Grassley on Wednesday urged FBI director nominee Christopher Wray to bring “independence” and “accountability” back to the agency.

“At the FBI oversight hearing on May 3, I said that a cloud of doubt hangs over the FBI’s objectivity,” the Iowa Republican said in his prepared opening remarks during Wray’s confirmation hearing. “The director of the FBI is entrusted with a tremendous amount of power. That power is subject to appropriate checks against the abuse of our civil liberties.”