Trump characterized the talk as “very productive,” but he wasted no time in taking to Truth Social to troll Trudeau following the leader’s Monday statements. He referred to him as “Governor Justin Trudeau of the Great State of Canada”—a reference to comments Trump made at the dinner, wherein he suggested Canada should become the 51st U.S. state.

Here's a look at how the showdown between the world's two largest economies played out the last time Trump was in office and where things might be headed now.

President-elect Donald Trump has promised to impose 10% tariffs on all imports from China as soon as he takes office next month.