Grassley recently sent a letter to the Director of the National Park Service outlining a series of incidents toward Ranger Jackson by his supervisors. In the letter Grassley said that Ranger Jackson's thirty years of experience in and knowledge of the back-country and its problems make him an invaluable part of enforcement and protection at Yellowstone. Last year Grassley investigated Park Service retaliation against Ranger Jackson after officials curtailed his work season so he could not patrol the back-country area.
"It's time Ranger Jackson got back to work for his final season at Yellowstone. He's been through the ringer for no apparent reason other than speaking the truth about problems. I'm glad the National Park Service finally came to its senses to retain its longest serving back-country ranger."