This ruling seems sound. The populations of wolves in the three states comprise a metapopulation that undergoes genetic exchange; it's unreasonable to end federal protection in a part of that metapopulation and not in another part. Any animosity should be directed not at Judge Molloy, but at the state of Wyoming for failing to develop a suitable wolf management plan.
Re: “Molloy overturns gray wolf delisting”
To WhatHappenedToThisCountry,
The habit of referring to any judge with whom one does not agree as "activist" has grown distressingly common. Molloy's ruling does indeed have a sound legal basis. He ruled that the EPA cannot de-list only part of a population, that its subdivision of the Montana and Idaha population was based impermissibily on political and not biological reasoning.
If you want wolves de-listed again, the proper target of your animus is Wyoming. If they had developed a suitable management plan as they were directed to do, this ruling would not be necessary.