As Canada braces for U.S. tariffs to hit as early as next week, some officials in Washington gathered for the annual 'Canada Day' celebration on Capitol Hill — an event that has taken on a new sense of urgency, CBC's Katie Simpson tells Power & Politics. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: http://bit.ly/1Z0m6iX Follow CBC News on TikTok: https://bit.ly/3TnHioe Follow CBC News