Why Trade Talks Collapsed Over an Ontario Ad

It started with U.S. President Donald Trump's 'quips' about Canada becoming the 51st state. Nearly a year later, the Canada-U.S. relationship has weathered a barrage of tariffs, trade threats and taunts. CBC's Washington bureau — Paul Hunter, Katie Simpson and Willy Lowry — weigh in on the past year of Canada-U.S. relations under Trump, the current trade stalemate and whether the country that's been known as Canada's ally is even still a friend.