The 2026 election is over (November 3). Official results are on the Colorado Secretary of State’s website.
Kim MonsonKim Monson · Colorado Voter's Guide 2026
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Retention question

Tamara McSherry Sullivan

Costilla County Court judge and former Colorado Legal Services staff attorney. The Twelfth Judicial District Commission on Judicial Performance voted 6 to 0 that she meets performance standards.

Court
Twelfth Judicial District - Costilla County Court
On the ballot in
Costilla County
Term
4 years
Appointed by Gov. Jared Polis, 2022
Appointing governor's party: Democrat
The commission's findingMeets Performance Standardsby a vote of 6 to 0
A yes vote means

Judge Sullivan stays on the Costilla County Court for a new four-year term.

A no vote means

Judge Sullivan leaves the Costilla County Court at the end of her current term.

Legal Aid in the San Luis Valley01

Tamara McSherry Sullivan is the Costilla County Court judge. A native of Cortez, she earned a bachelor's degree in English from Regis University in 2006, a master's degree in environmental law and policy from Vermont Law School in 2007 and her law degree from the University of Denver in 2012. Before her appointment she spent a decade as a staff attorney with Colorado Legal Services in the San Luis Valley, and the commission notes her background in managing a legal office.

Demeanor and Administration02

The Twelfth Judicial District Commission on Judicial Performance voted 6 to 0 that she meets performance standards, with two commissioners absent and two vacancies on the commission. Survey respondents praised her patience, professional demeanor and "nuanced understanding of the human element in legal disputes", the commission writes. In her self-evaluation she describes a commitment to "promoting access to justice" and "maintaining patience and neutrality". The commission reports high marks for "organizational aptitude" and "administrative performance" and calls its finding "a strong validation of her goal" to provide a "fair and respectful courtroom environment for all individuals."

No Role Over Law Enforcement03

The commission writes that her office as county court judge gives her no authority over the management, oversight or policy of the Costilla County Sheriff's Office or any other law enforcement agency, and that she is "not involved in the administrative decisions or broader law enforcement activities currently occurring within Costilla County."

Career04
2006
Earned a bachelor's degree in English from Regis University
2007
Earned a master's degree in environmental law and policy from Vermont Law School
2012
Earned her law degree from the University of Denver
Office of Judicial Performance Evaluation, 2026 evaluation
Commission evaluation05
On overall

“The evaluation of Judge Sullivan reflects a strong alignment between her personal judicial philosophy and the feedback provided by the legal community and the Judicial Performance Commission.”

On role of the court

“In her capacity as the Costilla County Court Judge, it is imperative to clarify that Judge Sullivan's judicial mandate does not grant her any authority regarding the management, operational oversight, or policy formulation of the Costilla County Sheriff’s Office or any other law enforcement agencies.”

Office of Judicial Performance Evaluation, 2026 evaluation
The figures06
Commission vote
6 meet · 0 do not meet · 2 absent · 2 vacant
Attorneys surveyed
4 responses · 67% meets standards · 33% does not
Non-attorneys surveyed
6 responses · 67% meets standards · 33% does not
Last retention election
First retention election
Sources07

The 2026 election is over. Requests for personalized guides closed on November 3, 2026. The full guide remains available to read.

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