Threats by U.S. President-elect Donald Trump to impose tariffs have created a split between Canada and Mexico, after Canadian officials said problems with the two countries' borders shouldn't be compared. On Monday, Mexico's president rejected those comments, which were made following a meeting between Trump and Prime Minister Justin Trudeau. "Mexico must be respected, especially by its trading partners," President Claudia Sheinbaum said, after Canada's ambassador to the US, Kirsten Hillman, told The Associated Press on Sunday that "the message that our border is so vastly different than the Mexican border was really understood". Sheinbaum said Canada had its own problems with fentanyl consumption and "could only wish they had the cultural riches Mexico has". Trump has threatened to impose 25% tariffs on goods from Canada and Mexico unless they stem the flow of migrants and drugs. Flows of migrants and seizures of drugs at the two countries' border are vastly different. US customs agents seized 43 pounds of fentanyl at the Canadian border during the last fiscal year, compared with 21,100 pounds at the Mexican border. Mexico's efforts to seize fentanyl before it reaches the US have been lackluster.

Most of the fentanyl reaching the US " where it causes about 70,000 overdose deaths annually " is made by Mexican drug cartels using precursor chemicals smuggled from Asia. On immigration, the US Border Patrol made 56,530 arrests at the Mexican border in October alone, while there were only 23,721 arrests at the Canadian border between October 2023 and September 2024. During the same period, US Customs and Border Protection reported 1.53 million encounters with migrants at the southwest border withe Mexico. Mexico feels especially hurt by the Canadian comments, because Mexican officials claim their government went to bat for Canada in the past. They claim that Trump, during his first term, initially wanted to leave Canada out of the US-Mexico-Canada free trade agreement in 2018, and Mexico demanded it be included. It is unclear if that was actually the case. Trudeau also got ahead of Sheinbaum by meeting with the US president-elect first. Both leaders are scrambling to get some assurances before Trump takes office.