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
TH
Retention question

Thomas W. Henderson

The Eighteenth Judicial District Commission on Judicial Performance voted 8 to 0 that Judge Henderson meets performance standards. He is the Arapahoe District Court's presiding civil judge and was a civil litigator for 35 years before his appointment.

Court
Eighteenth Judicial District - District Court
On the ballot in
Arapahoe County
Term
6 years
Judicial appointment
2023
Appointed by Gov. Jared Polis, 2023
Appointing governor's party: Democrat
The commission's findingMeets Performance Standardsby a vote of 8 to 0
A yes vote means

Judge Henderson stays on the Eighteenth Judicial District Court for a new six-year term.

A no vote means

Judge Henderson leaves the Eighteenth Judicial District Court at the end of his current term.

Arapahoe's Presiding Civil Judge01

Thomas W. Henderson was appointed to the Eighteenth Judicial District Court in 2023 after 35 years as a civil litigator. He is the Arapahoe District Court's presiding civil judge. He was president of the Arapahoe County Bar Association from 2020 to 2021, co-chairs its Access to Justice Committee and often serves as a judge in its annual high school mock trial competition. He earned a Bachelor of Arts degree from Whitman College in 1983 and graduated from the University of Denver Sturm College of Law in 1987.

Law, Evidence and Pro Se Parties02

One member was absent for the commission's 8 to 0 vote, and one seat was vacant. The commission reports that attorney and non-attorney respondents to its survey, "although low in response numbers, found no performance issues in any evaluation criteria."

The commission writes that Judge Henderson "effectively applies the law to the facts before him" and is "consistently described as respectful, fair, careful and reasoned, very knowledgeable in the Rules of Evidence, and able to handle complex cases." When many of the district's judges changed, he "assisted with a smooth transition due to strong leadership and communication skills." He "is cognizant of the need to take extra time with pro se parties to make sure they understand his rulings."

Career03
1983
Earned a Bachelor of Arts degree from Whitman College
1987
Graduated from the University of Denver Sturm College of Law
2020 to 2021
Served as president of the Arapahoe County Bar Association
2023
Appointed to the Eighteenth Judicial District Court
Office of Judicial Performance Evaluation, 2026 evaluation
Commission evaluation04
On overall performance

“His work is exceptional, with his overall performance strong enough to gain unanimous support from the Commissioners participating in the process.”

On case management

“He is also effective regarding case management, communication and administration.”

On temperament

“He is noted to have a very pleasant courtroom demeanor.”

On pro se parties

“He expressed one of his priorities was equal respect for those represented by counsel and pro se parties alike.”

Office of Judicial Performance Evaluation, 2026 evaluation
The figures05
Commission vote
8 meet · 0 do not meet · 1 absent · 1 vacant
Attorneys surveyed
23 responses · 90% meets standards · 10% does not
Non-attorneys surveyed
9 responses · 67% meets standards · 22% does not
Last retention election
First retention election
Sources06

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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