Why did Canada walk away from U.S. trade talks? We ask Ottawa's top trade man

U.S. President Donald Trump threatens new 50 per cent tariffs on Canada after trade talks fall apart. Power & Politics hears from Canada-U.S. Trade Minister Dominic LeBlanc on what it will take for Canada to return to the negotiating table, while Conservatives demand answers on what went wrong. Plus, New Brunswick Premier Susan Holt weighs in on the trade war's impact on her province.