Material costs are rising, workers are scarce and customers are delaying new construction plans.

The Blue Jays, Canada’s only M.L.B. team, were a salve for a country hit by President Trump’s threats and tariffs. Then the Dodgers ended their thrilling postseason run.

The move deepened the idea that a Vietnam-era law, which says congressionally unauthorized deployments into “hostilities” must end after 60 days, does not apply to airstrike campaigns.