As the U.S. prepares for a showdown between vice-president Kamala Harris and former president Donald Trump, The Agenda looks at the historic nature of the race. For more on this, we're joined by: Vivian Salama (National Politics Reporter, The Wall Street Journal), Andrew Coyne (Columnist for The Globe and Mail), and Kim Nossal (Professor emeritus in the Centre for International and Defence Policy at Queen's University) and author of "Canada Alone: Navigating the Post-American World."

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