Lord Huron was the dark horse on the Bluesfest lineup. Here's what happened.

Mark Carney’s teleprompter quit during a housing announcement in Toronto on Wednesday, and the prime minister used the pause to take a shot at Donald Trump. “I would like to inform you that the teleprompter has ceased to function,” Carney said. “Unlike a certain world leader, I do not view this as a conspiracy.” The crowd laughed. Carney did not name Trump, however, last September, the U.S. president’s teleprompter failed during his address to the United Nations General Assembly , and he said afterward that he had been sabotaged. Trump listed three problems from that visit. An...