Article II, Section 6 | Powers of each house
Each House shall be judge of the election, returns, and qualifications of its own members. A majority of all the members elected to each House shall be a quorum to do business; but, a less number may adjourn from day to day, and compel the attendance of absent members, in such manner, and under such penalties, as shall be prescribed by law.
Each House may punish its members for disorderly conduct and, with the concurrence of two-thirds of the members elected thereto, expel a member, but not the second time for the same cause. Each House has all powers necessary to provide for its safety and the undisturbed transaction of its business, and to obtain, through committees or otherwise, information affecting legislative action under consideration or in contemplation, or with reference to any alleged breach of its privileges or misconduct of its members, and to that end to enforce the attendance and testimony of witnesses, and the production of books and papers.