Prime Minister Mark Carney of Canada won a new term on Monday night, a remarkable turnaround for his Liberal Party, owed in large part to President Trump’s aggressive stance toward the country.

Early Tuesday morning and after an all-night count, Canada’s elections agency said it would stop tallying votes for a few hours and resume at 9:30 a.m. Eastern — leaving unanswered the question of whether the Liberals had managed to narrowly clinch a majority of seats in the House of Commons. A minority government would require support from other parties to pass legislation and would be weaker and less stable than a majority.

But what was clear was that Canadians had opted for Mr. Carney, an economist who was running in national elections for the first time in his life, with Mr. Trump and his impact on Canada’s economy on their mind.

The centerpiece of Mr. Carney’s acceptance speech early Tuesday morning was Canada’s response to Mr. Trump’s policies.

“As I’ve been warning for months, America wants our land, our resources, our water,” he said. “President Trump is trying to break us so he can own us. That will never happen.” He warned Canadians that the road ahead would be difficult and might require sacrifices.

The Conservative Party had been handily leading in polls until March when Mr. Trump’s tariffs on Canadian goods took effect and Mr. Carney replaced Justin Trudeau as prime minister and leader of the Liberals. For the Conservative leader, Pierre Poilievre, the party’s stinging defeat was compounded by the fact that he lost his seat, which he had held continuously for 20 years, to the Liberal candidate.