Prime Minister Mark Carney has no immediate plans to ask U.S. President Donald Trump and his negotiating team to return to the table for more trade talks, a source with knowledge of the plans said Monday.

The message leaves little optimism for a resolution to punishing new tariffs from the United States and what Mr. Carney on Saturday described as a trade “war” with Canada’s closest ally and economic partner.

The source said while Canada would not ask for talks at this stage, it’s possible the Trump administration could change its mind and ask for negotiations to resume. Though the source cautioned that is not what Ottawa is planning for.

A separate source said Ontario is now planning for at least two years of tariffs from the United States.

The Globe and Mail is not identifying the sources who were not authorized to speak publicly about the matter.

Meanwhile, Mr. Trump says he will raise tariffs on Canadian autos to 50 per cent and also start tariffing auto parts on Jan. 1, 2027, after a prospective trade deal between the two countries collapsed on Friday.