These 'independent' opinions are being taken by this administration as a road map to SPP. If you doubt this check out the US Chamber of Commerce site where they list the ten US companies (and ten each from Canada and Mexico) who have been chartered with finding a way to make it work corporately.
Or you can keep your head buried in the sand outside Crawford.
No doubt tehre are similar documents from multiple think tanks. Lots of people have bad ideas, and probably evil agendas.
These bad ideas are exactly why conservatives must be willing, indeed eager, to confront these ideas in the marketplace of ideas, such as at the CFR.