The Sanhedrin includes the present high priest, Caiaphas, as well as Pharisees and Sadducees, chief priests, and former high priests.
... Caiaphas, who is perhaps a Sadducee, now speaks up, saying: “You do not know anything at all, and you do not reason out that it is to your benefit for one man to die in behalf of the people and not for the whole nation to be destroyed.”