Pete Hoekstra thumbs through an imaginary document, and pauses for effect: “This is a serious proposal — pile one.” Then he raises a second document. “I can’t believe this,” he guffaws. “This is a joke.” Straight to the discard pile.

That, says President Donald Trump’s ambassador to Canada, is how it will go — one way or another — when newly elected Prime Minister Mark Carney submits a proposal on a revamped economic and security agreement with the United States