Rates, AI and trade tensions test markets near record highs 8/24/26

Markets hover near record highs as investors weigh rising rates, debt and resilient corporate earnings against growing geopolitical and trade uncertainty. Plus, Nvidia earnings, biotech M&A and breakthroughs in cancer vaccines put AI and health care innovation in focus. Later, Jackson Hole, Fed policy and escalating U.S. Canada trade tensions raise fresh questions about tariffs, inflation and the market outlook.