New North American Trade Agreement Prompts Trump Celebration, But How Big Is It?

Just hours before a self-imposed deadline, Canada agreed to join the United States and Mexico in a trade deal known as the U.S.-Mexico-Canada Agreement (USMCA), prompting President Trump to declare victory on the trade front.

USMCA would replace the 1994 North American Fair Trade Agreement (NAFTA), which Trump has repeatedly called "the worst deal ever made."

"It's my great honor to announce that we have successfully completed negotiations on a brand new deal to terminate and replace NAFTA and the NAFTA trade agreements with an incredible new U.S.-Mexico-Canada agreement called USMCA," Trump said at a press conference Monday.

A final deal would need to be ratified by Congress. If this deal passes, what might it mean for American workers and companies?

Evan Horowitz, Boston Globe's "Quick Study" Columnist. Evan tweets @globehorowitz.