Canada announces $21B in new US tariffs as trade war escalates

Canada has announced $21 billion in new tariffs against the U.S. on Wednesday after President Donald Trump’s new 25% tariffs on steel and aluminum went into effect.

Canada is the biggest foreign supplier of steel and aluminum to the U.S.

This is a developing story. Please check back for updates. 

FOX Business’ Bradford Betz contributed to this report.