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.

President Donald Trump said the US will put a 35% tariff on some imports from Canada, escalating the tensions between two countries that have impaired one of the world’s largest trading relationships.