A Death Valley hiker gave an interview as temps soared to 121°F. Hours later, he died.

OTTAWA — No general election, no imminent cabinet shuffle, and greater control over Parliamentary committees to prevent opposition MPs from “showboating” with talk of “cats and dogs.” Those are some of the commitments Prime Minister Mark Carney made about how he planned to wield his newfound majority government hours after the Liberals secured seats in three Ontario and Quebec byelections on Monday. Carney spoke to reporters from Parliament’s West Block the day after the byelections, which capped a historic jump from a Liberal minority government to a majority. That was largely due...