What proportion of votes is required to expel a member from either house of the Arizona legislature?

Expelling a member from either house of the Arizona legislature requires a two-thirds majority vote. This high threshold reflects the serious nature of expulsion, ensuring that there is significant consensus among the legislators before such a drastic action is taken. A simple majority might not adequately represent the views of the legislative body, as it could allow for expulsion with only marginal support. Requiring a two-thirds vote helps safeguard against potential partisan abuses and ensures that a substantial majority agrees with the decision to expel a member. This requirement is consistent with practices in many legislative bodies, where a significant consensus is deemed necessary to uphold the integrity and fairness of the institution.