D. Cory Jackson was appointed to the Seventh Judicial District Court in 2017. Voters retained him in 2020 with 72.04 percent of the votes cast on the question: 36,900 yes and 14,323 no. He was appointed chief judge in 2024 and, as chief, is the administrative head of all district and county courts in the district. He presides primarily over civil cases and juvenile matters, and he serves on the Colorado Pattern Civil Jury Instructions Committee, the Security Cash Fund commission and the Statewide Panel on Consolidated Multidistrict Litigation.
Before his appointment he was the Ouray County Court judge and the municipal judge for Ouray, Ridgway and Telluride. He earned his law degree from the University of Colorado Law School in 2005 and a Bachelor of Arts degree with honors in economics from Colorado College.