Sunday shows preview: Canada faces off with US in trade ‘war’; Republicans gear up for upcoming primaries

Talks between the U.S. and Canada broke down, leading the Trump administration to slap a hefty 50 percent tariff on Canadian goods. Canadian Prime Minister Mark Carney hit back immediately, announcing retaliatory measures of his own. This escalating trade dispute could have broader implications for international trade relations and sets a tense backdrop for upcoming Republican primaries, where economic issues are likely to be a major talking point. The fallout from this "trade war" could impact everything from consumer prices to diplomatic relations.