Granting more authority to a Pres is crazy, from any party and TPA does that. A Pres only has the power to negotiate treaties, TPA is no such thing. The fact that he would even support that principle is telling.
Almost every President for the last 80 years has had Fast Track authority. Cruz did not invent the concept.
It will be interesting to see who you finally support. The only One Who can possibly meet your standards doesn’t need your vote.