From Ballotpedia:

The Maricopa County Commission on Trial Court Appointments recommends candidates for the position of trial court judge in the Maricopa County Superior Courts.

When there is a vacancy on the Maricopa County Superior Court, the commission announces that it is accepting applications to fill that vacancy. After interviews are conducted, the commission makes its decision about who to recommend to the Governor of Arizona. The commission is required to submit a list with at least three names on it for each vacancy. It is required to take into account “ethnic, gender and geographic diversity.”

If a judge is voted off the court, the judge will be replaced by the sitting governor.

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