Canada–U.S. Trade War: Prime Minister Mark Carney says the U.S. broke off talks over “uneconomic, unfair” last-minute demands, and Trump’s 50% tariffs on about $20B of Canadian goods are now in effect; Canada vows “dollar-for-dollar” retaliation starting Sept. 8, targeting sectors like steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics, while the Canadian dollar slides on the outlook. Parliament Pressure: Conservative Leader Pierre Poilievre urges Carney to reconvene Parliament and release the rejected deal text so Canadians can see what’s at stake for prices and jobs. U.S. Blame Game: U.S. Trade Rep Jamieson Greer tells CNBC Canada “wanted more” late in negotiations, as both sides trade accusations. International Outreach: Finance Minister Nirmala Sitharaman will visit Canada and the U.S. Aug. 25–Sept. 2 for an Economic and Financial Dialogue and investment talks, including energy, AI, and critical minerals. Quebec AI Rules: Four Quebec parties back IVADO/CEIMIA’s code of conduct for responsible AI use in politics ahead of the Oct. 5 election. Immigration Screening: Canada tightens visa verification for Dominica and four other Caribbean nations amid broader identity and document checks. Alberta Referendum: A non-binding Oct. 19 Alberta separation referendum question is framed as especially risky amid U.S. pressure and foreign efforts to exploit divisions.