refuse to sign the Trans-Pacific Partnership.

The TPP, if signed, would become binding law as an international treaty.
Key features of this highly secretive agreement includes licensing private companies to sue governments for loss of "expected future profits," pursuing future internet restrictions reminiscent of anti-Net Neutrality rules recently attempted, and further exacerbating intellectual property rights overreach.
The TPP is massively unpopular in every country it seeks agreement from, but is curiously able to pass Congress. Massively anti-democratic and anti-capitalistic, the TPP is yet another attempt for massive corporate control of markets not through competitive superiority, but through legislative coercion of legitimate competition. It further smothers the incipient digital rights discussion. It is simply unamerican.