Each house may determine the rules of its own proceedings, punish for contempt and disorderly behavior, and with the concurrence of two-thirds of all the members elected, expel a member; but no member shall be expelled a second time for the same cause.

Article IV, §8 - ANNOT.

The legislature cannot sentence a person to confinement for contempt without notice and without giving an opportunity to respond to the charge. Groppi v. Leslie, 404 U.S. 496.