When will the defense bring an objection to the selection procedure before the jury is sworn?

Because the defense did not raise the present objection to the selection procedure before the jury was sworn, the claim has been forfeited. (People v. Visciotti (1992) 2 Cal.4th 1, 38, 5 Cal.Rptr.2d 495, 825 P.2d 388.) Recognizing that we might reach this conclusion, defendant contends that his trial counsel's failure to object deprived him of his constitutional right to effective assistance of counsel. We reject the claim of ineffective assistance for lack of prejudice.