What to know about Trump's 50% tariffs on Canadian goods that just went into effect - PBS

What to know about Trump's 50% tariffs on Canadian goods that just went into effect  PBSInside the 72 hours that cratered the US-Canada trade deal  PoliticoWorld in Brief: Carney vows to retaliate against Trump’s tariffs; Putin threatens Ukraine  The EconomistU.S. Economy Could Feel the Sting From Trade War With Canada  The New York Times'Masters in our own home': Canada PM Carney explains why trade talks with US were suspended  The Times o