I believe the GOP wants TPP (TPA) so badly that they have rolled over and greased up for Obama for the last 6 years...their first Congressional Majority under his term.
The Republicans have been paid for years to ensure TPP at all costs. And Immigration reform, putting illegals on the books.
Obama has received enormous favor in return.
Any GOP POTUS candidate will sign a TPP deal except for maybe Trump. He'll likely send it back for renegotiation if for no other reason than to save face.
But the Congressional Republicans will be pushing hard, in spite of the overwhelming opposition in both parties.
I expect the POTUS to propose and Ryan/McConnell to place on the floor a vote for TPP before the election.
Yes, they are so filled with hubris as to be evil.
TPP does the latter. It's an interesting and certainly plausible hypothesis, although I don't see any sign of it. My understanding is that some conservatives see TPP as a bulwark against China. I don't know enough about it to speculate on how that works.