'Rulers' in the Bible

Yet here he is, speaking publicly, and they are saying nothing to him. Do the rulers really know that this man is the Christ?

None of the rulers or the Pharisees have believed in him, have they?

Nicodemus, who had gone to Jesus before and who was one of the rulers, said,

Nevertheless, even among the rulers many believed in him, but because of the Pharisees they would not confess Jesus to be the Christ, so that they would not be put out of the synagogue.