The governing Liberal party is enjoying a stunning turnaround in the polls, and now it has a new leader. We ask how Mark Carney will tussle with Donald Trump’s tariffs and taunts. China has a vibrant new wintertime economic sector: skiing and snowy tourism (10:45). And a tribute to Rose Girone, knitter extraordinaire and the oldest known Holocaust survivor (17:22).Get a world of insights by subscribing to Economist Podcasts+. For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.