Canada, one of the U.S.’s largest trading partners, was not able to reach a deal with the White House, who instead raised tariffs on some Canadian goods. “Relationships matter,” says Former U.S. Ambassador to Canada David Cohen,

After Canada failed to strike a trade deal with Washington, the president raised tariffs on some Canadian exports this week.

Trump has justified tariffs on goods from Canada, the top U.S. export market, by accusing it of failing to stop the cross-border flow of fentanyl, even though U.S. government data shows Canada accounts for only 1% of the fentanyl that enters the United States.