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A brief standoff with Colombia holds important lessons for how future trade conflicts might unfold in the new Trump administration.

It’s not yet known how Donald Trump will resolve TikTok’s complicated legal limbo, but what does seem clear is that the fate of the social media app is increasingly linked in the president's mind to his top issue of tariffs.

Donald Trump grabbed onto the idea of hitting Canada with tariffs almost immediately after November's election and he hasn't let go since.