Nvidia CEO Jensen Huang will draw intense attention when he speaks on Wednesday’s earnings call, as chipmakers work to convince investors that the artificial-intelligence (AI) boom remains on track. Wall Street may be reluctant to accept that outlook until Huang provides reassurance, making his comments potentially important for a technology-focused stock market and an economy increasingly reliant on AI growth. The update also highlights a deepening U.S.-Canada trade rift: Prime Minister Mark Carney has followed through on his promise to walk away from what he called a “bad deal” with the U.S. The decision has broad support in Canada but risks disrupting an economy that still sends most of its exports to its southern neighbor.