That wasn’t the only tense exchange Lutnick would have with a Canadian leader. Several days later, he was also on

But if fentanyl does not end, or he's uncertain about it, he will stay this way until he is comfortable," Lutnick said of the addictive and deadly opioid in an interview with NBC's "Meet the Press." "This is black and white.

US Commerce Secretary Howard Lutnick signaled he doesn’t expect a reprieve on 25% tariffs for steel and aluminum imports scheduled to take effect on Wednesday.