TORONTO — Canada’s ambassador to the United States said Sunday that Prime Minister Justin Trudeau was successful in getting President-elect Donald Trump and key Cabinet nominees to understand that lumping Canada in with Mexico over the flow of drugs and migrants into the U.S. is unfair.

Kirsten Hillman, Canada’s ambassador in Washington, said in an interview that Trudeau’s dinner with Trump on Friday was a very important step in trying to get Trump to back away from threatened tariffs on all products from the major American trading partner.

Hillman was at Trump’s Mar-a-Lago club in Florida and sat at an adjacent table to Trudeau and Trump.

Trump threatened to impose tariffs on products from Canada and Mexico if they don’t stop what he called the flow of drugs and migrants across their borders. He said in a social media post last Monday he would impose a 25% tax on all products entering the U.S. from Canada and Mexico as one of his first executive orders.

Hillman said Trudeau asked to see Trump in person in a phone call Monday and Trump invited him to dinner on Friday.

At the dinner, Hillman said the case was made to Trump that there is no comparison between the Canada-U.S. border and Mexico-U.S. border.

“The message that our border is so vastly different than the Mexican border was really understood,” Hillman said.

Hillman said the bulk of Friday night’s dinner centered around Trump’s border concerns. The ambassador said a priority of Trudeau’s was to point out the degree of difference.

Hillman said there really is no comparison, noting there is essentially zero trafficking of fentanyl from Canada to the United States. She said there are seizures but authorities say those are personal use seizures and not criminal trafficking. She said that 99.8% of the fentanyl seized by U.S. authorities in the U.S. comes from Mexico.

“Also with respect to individuals, illegal individuals crossing illegally, Canada last year was less than one percent, 0.6 percent were of total interceptions from Canada,” Hillman said.