As U.S. tariffs on Canadian lumber products rise from 35 per cent to 45 per cent, New Brunswick Premier Susan Holt tells Power & Politics the increases pose a 'real challenge' to her province's economy and calls for federal support to make Canada's lumber sector more competitive. The Power Panel weighs in, too. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://