George Monbiot, in the Guardian, tells us why:
https://www.theguardian.com/commenti...rade-agreement
A choice remark from the article:
Trump was right to spike the Trans-Pacific Partnership. He is right to demand a sunset clause for Nafta. When this devious, hollow, self-interested man offers a better approximation of the people’s champion than any other leader, you know democracy is in trouble.