Premiers urge unity in face of U.S. tariff threats, Alberta demands energy exemption

The country's premiers emerged from a key meeting about Canada-U.S. relations in Ottawa on Wednesday with a message of unity and a pledge to stand together, with one exception: Alberta's Danielle Smith, who said she cannot support the federal government's plan if energy export tariffs could be a part of it. 

Prime Minister Justin Trudeau, who chaired the first ministers' meeting, said it was "highly productive."

"We have a shared sense of purpose, a shared sense of understanding, and a commitment to stand together on a united path forward," he said.