I am not confusing anything here. Murkowski and Sullivan -as did Begich - have publicly endorsed fast-tracking the TPP. It, along with all of the other bills since NAFTA have been horrible drains on US jobs 
but the investor protection elements of these new treaties/pacts are a whole new level of perfidy that will supersede our domestic laws under penalty of the U.S. taxpayer being on the hook for loss of foreign investment projected profits.
People would be wise to check this out:
http://fair.org/home/lori-wallach-peter-maybarduk-and-karen-hansen-kuhn-on-corporate-globalization/