Trudeau said Canada will implement 25% tariffs on $155 billion of U.S. goods. "This includes immediate tariffs on $30 billion worth of goods effective Tuesday, followed by further

Ties between the United States and Mexico have deepened over 30 years of free trade, creating both benefits and irritants.

The move likely will trigger retaliation and risk igniting a trade war that could cause broad economic disruption for all countries involved.