When President-elect Donald Trump recently floated the idea of annexing Canada, a key reason he gave was a claim that the United States was “losing $200 billion a year” to its northern neighbor.

Trump's biggest first-term trade impact was to shatter decades of political consensus favoring ever-lower trade barriers.

Should President-elect Donald Trump follow through on his promise to impose a new 25% tariff on goods imported from Canada, the United States' northern neighbor has vowed to retaliate in a trade war that could prove costly for American consumers.

Trade has dominated the conversation in Canada since Donald Trump won the U.S. election and threatened to slap a 25 per cent tariff on all imported goods. Now with his inauguration just days away, it’s a good time to reflect on the trade barriers within our own country,