As for Trump's proposal of tearing up NAFTA, many American and Canadian experts say that it's not worth it to renegotiate or end the agreement. The three countries that are part of the agreement are so enmeshed with each other that untangling all that integration would be detrimental to trade and economic growth.
"It would be disastrous to renegotiate," says Robert Feenstra, an economics professor at UC-Davis. "It would have a disastrous impact on the U.S.-Canada trade relationship."