Chief Justice Currently Seated

Ann A. Scott Timmer

Arizona Supreme Court · Appointed October 12, 2012

Portrait of Ann A. Scott Timmer
Education and employment

Justice Ann A. Scott Timmer became Chief Justice on July 1, 2024. She earned her bachelor’s degree from the University of Arizona, her J. D. magna cum laude, from Arizona State University Law School (now the Sandra Day O’Connor College of Law), and a Masters in Judicial Studies from Duke University Law School. Justice Timmer joined the Arizona Supreme Court in 2012 and was elected by her colleagues as Vice Chief Justice in 2019. Prior to being appointed to the Supreme Court bench, Justice Timmer served on the Arizona Court of Appeals for 12 years, serving as its chief judge for three years.

Judicial record

393 opinions where Ann A. Scott Timmer sat on the panel, spanning 2005–2026.

86 Majority authored
307 Joined majority

By court

  • Ariz. 392
  • Ariz. Ct. App. 1

By disposition

  • Affirmed 168
  • Reversed 90
  • Mixed 49
  • Vacated 45
  • Remanded 15
  • Granted 1

Panel votes per year

How Ann A. Scott Timmer's panel-seat count has shifted year by year. Overlaid with William G. Montgomery for comparison (drop the overlay).

0 10 20 30 40 50 2005 2010 2015 2020 2025 2026 2005: 1 vote — Ann A. Scott Timmer 2013: 13 votes — Ann A. Scott Timmer 2014: 32 votes — Ann A. Scott Timmer 2015: 15 votes — Ann A. Scott Timmer 2016: 26 votes — Ann A. Scott Timmer 2017: 29 votes — Ann A. Scott Timmer 2018: 40 votes — Ann A. Scott Timmer 2019: 16 votes — Ann A. Scott Timmer 2020: 39 votes — Ann A. Scott Timmer 2021: 30 votes — Ann A. Scott Timmer 2022: 42 votes — Ann A. Scott Timmer 2023: 29 votes — Ann A. Scott Timmer 2024: 31 votes — Ann A. Scott Timmer 2025: 33 votes — Ann A. Scott Timmer 2026: 17 votes — Ann A. Scott Timmer 2020: 21 votes — William G. Montgomery 2021: 23 votes — William G. Montgomery 2022: 34 votes — William G. Montgomery 2023: 23 votes — William G. Montgomery 2024: 24 votes — William G. Montgomery 2025: 29 votes — William G. Montgomery 2026: 13 votes — William G. Montgomery
  • Ann A. Scott Timmer
  • William G. Montgomery

Most-frequent co-panelists

Judges who appeared on the same opinions, ranked by overlap count. Click compare to overlay them on the chart above.

Recent opinions

15 most recent opinions where Ann A. Scott Timmer sat on the panel.

Docket Court Filed Disposition Case
CV-25-0116-PR Ariz. 2026-07-17 Reversed in part and remanded Gelvin v. Hon. parker/gelvin
CV-25-0033-PR Ariz. 2026-07-17 Reversed and remanded GOLDWATER v. PHOENIX
CV-25-0089-PR Ariz. 2026-07-17 Affirmed in part REPUBLICAN NATL COMMITTEE v. FONTES
CV-25-0009-PR Ariz. 2026-07-07 Affirmed MAYWALD v. TOYOTA
CV-24-0140-PR Ariz. 2026-07-06 Affirmed State Farm v. Balzan
CV-24-0295-PR Ariz. 2026-06-29 Affirmed in part, reversed in part, remanded CENTER FOR AZ v. AZ SECRETARY OF STATE
CV-25-0036-PR Ariz. 2026-06-17 Reversed and remanded MARKHAM v. CAHAVA
CR-25-0203-PR Ariz. 2026-06-01 Affirmed in part, reversed in part and remanded State of Arizona v. Ricky Alonzo Hippensteel
CV-25-0070-PR Ariz. 2026-05-22 Affirmed STEPHENS v. STATE
CR-20-0031-AP Ariz. 2026-05-15 Affirmed State of Arizona v. Edward Littleton McCauley
CR-24-0237-PR Ariz. 2026-05-15 Affirmed State of Arizona v. Dimitri Polanco Romero
CV-25-0079-PR Ariz. 2026-05-14 Reversed and remanded SIMMS v. ARIZONA RACING COMMISSION
CV-24-0267-PR Ariz. 2026-04-28 Vacated Chandler v. Roosevelt
CV-25-0161-PR Ariz. 2026-04-27 Vacated and remanded Briana Hernandez v. Luis Arturo Loarca
CV-24-0288-PR Ariz. 2026-03-03 Reversed and remanded 9w Halo v. Ador