Tester (D - MT) and Simpson (R - ID) placed a rider within a Federal funding bill to legalize wolf hunting. Good on Tester and Simpson.
The simpson-Tester delisting rider was to reissue the 2009 delisting rule that carved Wyoming out, and put a prohibition on judicial intervention. It was a dangerous gambit that worked well, because of the inability to remove a recovered species from areas that lived up to the obligations and requirements of the ESA to produce plans that would result in the continued propagation of the species. If Wyoming hadn't wasted a dozen years going down the road they did, we would have had wolves delisted in 2004 or 5, with a final delisting (post-litigation, etc), by 2007, IMO.