Section 4. Quorum and procedure.

(a) A majority of the membership of each house shall constitute a quorum, but a smaller number may adjourn from day to day and compel the presence of absent members in such manner and under such penalties as it may prescribe. Each house shall determine its rules of procedure.
(b) Sessions of each house shall be public; except sessions of the senate when considering appointment to or removal from public office may be closed.
(c) Each house shall keep and publish a journal of its proceedings; and upon the request of five members present, the vote of each member voting on any question shall be entered on the journal. In any legislative committee or subcommittee, the vote of each member voting on the final passage of any legislation pending before the committee, and upon the request of any two members of the committee or subcommittee, the vote of each member on any other question, shall be recorded.
(d) Each house may punish a member for contempt or disorderly conduct and, by a two-thirds vote of its membership, may expel a member.
(e) The rules of procedure of each house shall provide that all legislative committee and subcommittee meetings of each house, and joint conference committee meetings, shall be open and noticed to the public. The rules of procedure of each house shall further provide that all prearranged gatherings, between more than two members of the legislature, or between the governor, the president of the senate, or the speaker of the house of representatives, the purpose of which is to agree upon formal legislative action that will be taken at a subsequent time, or at which formal legislative action is taken, regarding pending legislation or amendments, shall be reasonably open to the public. All open meetings shall be subject to order and decorum. This section shall be implemented and defined by the rules of each house, and such rules shall control admission to the floor of each legislative chamber and may, where reasonably necessary for security purposes or to protect a witness appearing before a committee, provide for the closure of committee meetings. Each house shall be the sole judge for the interpretation, implementation, and enforcement of this section.