According to a senior CO wildlife biologist (off the record), the state knows that there are wolves in CO, but until there is a sustainable population, they will continue to not acknowledge their presence. I've never discussed wolverines before, so this discussion is all news to me about them.
I'm the co-Chair for the Pikes Peak Chapter of the RMEF. I've seen a tremendous amount of data supporting the official RMEF position on wolves. Truth is, the wolf populations are exploding while the elk populations are getting decimated in those same areas. I think the 1/3 loss of elk in these areas may be old, or at the least conservative, estimates.
Thing is, once wolves establish any provable foothold in an area, the animal-rights groups begin litigation against any efforts to control their populations. There have been dozens of cases before the courts over the issue of managing wolf populations. While the animal-rights groups lose repeatedly, this doesn't dampen their spirits in bringing the next case before the courts. While each case is under litigation, the wolf populations continue to grow and the game species continue to dwindle.