The Endangered Species Act (signed by Republican President Richard Nixon) happened in 1973 when Richardson wasn't a New Mexico citizen (he became a resident this year finally.) I do have
this link.And the Western Governors like the ESA here.
More Mr Bill and ESA.
And Richardson was dropped as Interior Secretary candidate.
And Bill scored more than 94% as an environmentalist.
Perhaps the Great Karmatic Worm has turned.
Too late this evening to follow-up with your links, but I'm sure Bill (as well as Domenici) would have voted Yes during the re-authorization process.