President Donald Trump's tariffs on Canada and Mexico are an "attempt to stop the bleeding" in the American economy, United Auto Workers President Shawn Fain told "This Week" on Sunday in defense of the controversial measures.

"We're in a crisis mode in this country," Fain said, suggesting America's trade system is "broken" and in need of drastic reform. "We’re in a triage situation," he added.

Tariffs "aren't the end solution," Fain explained, "but they are a huge factor in fixing this problem."

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