Liberty for whom is the question.
Obama just signed TPP which Ted Cruz made possible by voting for TPA.
Actually, Obama was going to sign TPP regardless of whether or not TPA had been passed. And this version of TPA allows either house of Congress to decide that if TPP doesn't comply with the terms of TPA. If so, then no fast-track process. IT also requires a minimum of 3 months after the agreement is signed before the agreement cant even be introduced to Congress, and the agreement has to be available for public review during that time.