Democrats Clara Pratte and Jonathon Hill won two seats on the Arizona Corporation Commission, ending its all-Republican membership while leaving Republicans with a 3–2 majority. Republican candidates Kevin Thompson and Ralph Heap have conceded. The election centered on rising utility bills and concerns about data centers. Pratte, a Navajo Nation member, will become Arizona’s first Indigenous woman elected to statewide office.
Pratte and Hill pledged to scrutinize utility companies, seek reliable data on data centers’ water and electricity use, and oppose formula rates, which allow annual rate adjustments through a shortened review process. Republican Commissioner Lea Márquez Peterson’s opposition to formula rates could make her a key swing vote. However, major Arizona Public Service and Tucson Electric Power rate cases may be decided before the Democrats take office.
