Canada

Updated at 8:25 a.m. ET

President Trump, Canadian Prime Minister Justin Trudeau and Mexican President Enrique Peña Nieto signed the new U.S. Mexico Canada Agreement — or USMCA — in Buenos Aires Friday, using the backdrop of the G-20 Summit to resolve a trade dispute between America and its closest neighbors.

"Let's go," all three leaders said as they sat alongside each other to sign multiple copies of the deal.

After nearly a century of prohibition, Canada became the first major economy this week to legalize recreational marijuana (though Uruguay was the first in 2013), and it has U.S. companies lining up.

Updated at 3:45 p.m. ET

The U.S. and Canada reached a deal to replace the North American Free Trade Agreement, signed a quarter-century ago, with a new pact that the Trump administration says is easier to enforce.

In remarks in the Rose Garden formally announcing the agreement, President Trump called it "the most important trade deal we've ever made by far."

Ahead of a midnight deadline set by the White House, Trump approved changes that essentially revamp the 1993 NAFTA deal, bringing Canada on board after Mexico had already agreed in August.

Updated at 5:40 p.m. ET

The United States and Mexico have reached an "understanding" on several critical trade issues following bilateral talks to renegotiate the North American Free Trade Agreement. They will now likely re-engage with Canada to reach a final deal on NAFTA, a primary goal of the Trump administration.

Speaking at the White House on Monday, President Trump said he wanted to change the NAFTA name to the U.S. Mexico Free Trade Agreement. He also reframed the negotiations as two bilateral trade deals.