Three people are in hospital with life-threatening injuries following a targeted stabbing attack on the midway of the Calgary Stampede; and, U.S. President Trump says a 50 per cent tariff on imported copper will come into effect as of Aug. 1, citing national security concerns.

Three people are in hospital with life-threatening injuries following a targeted stabbing attack on the midway of the Calgary Stampede; and, U.S. President Trump says a 50 per cent tariff on imported copper will come into effect as of Aug. 1, citing national security concerns.

CTV National News is Canada's most-watched national news program. Now you can stay up date Monday to Friday with the CTV National News Podcast, delivered nightly. Listen to Canada’s most trusted newscast featuring stories from here and around the world with a perspective that is distinctly Canadian and backed by the #1 news organization in Canada.

CTV National News is Canada's most-watched national news program. Now you can stay up date Monday to Friday with the CTV National News Podcast, delivered nightly. Listen to Canada’s most trusted newscast featuring stories from here and around the world with a perspective that is distinctly Canadian and backed by the #1 news organization in Canada.