Jim Abbott, the supervisor of the Coronado National Forest, reported a similar threat by McCain in 1989. Worried about the impact on the endangered Mount Graham red squirrel, Abbott ordered a halt to construction of University of Arizona telescopes at the top of the mountain. McCain then asked to meet with Abbott and said, "If you do not cooperate on this project, you'll be the shortest-tenured forest supervisor in the history of the Forest Service."
A few days later, McCain called Abbott to apologize. Construction ultimately proceeded after McCain backed legislation to create an exemption for the project from the endangered Species Act and other existing laws.