Trumps trade war with Canada has blown up in his face. Now he has a crucial meeting with Mark Carney | Money [Video]

Washington (CNN) — Canadian Prime Minister Mark Carney will visit US President Donald Trump at the White House on Tuesday in what could be one of the most contentious meetings between the neighboring countries’ leaders in years.

Canada is America’s second-biggest trading partner and one of its closest allies on many fronts, from national security to commerce. But Trump’s aggressive tariff blitz in recent months has undermined that longstanding relationship — and inadvertently helped Carney consolidate political power.

In a stunning rebuke to Trump, Canada’s Liberal Party, with Carney as its leader, won federal elections last week, putting the newly elected government on a collision course with the Trump administration. In a defiant post-election speech, Carney said “we are over the shock of the American betrayal but we should never forget the lessons.”

Canada and the United States have shared free trade for decades, but Trump’s sweeping tariffs upended that symbiotic relationship — and the damage Trump’s …