CTV National News | Wednesday, Aug. 21: Massive railway shutdown across Canada

A massive rail strike begins affecting billions of shipments in Canada; and Tim Walz accepts the nomination for vice-president at the DNC.

Historic railway stoppage 1:19
Canada in labour movement 5:13
Tim Walz addresses DNC 7:30
Trump targets Democrats 9:40
Homicide in Manitoba 11:02
Back-to-school budgeting 13:15
Food delivery jobs cut 15:55
Shania Twain reunion 20:34

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