They just declared CUSMA dead, so the negotiators should pack up and go home. Tit for tat actions can be reconsidered, digital taxes, etc. There's no point in talking to "Trump's people" and given that Trump doesn't honour agreements, there's no point in talking to him.

Footguns fired because ego.

"Trump TACOs before you've even got around to reading this".

That's speculative, although no doubt he will at some point. And then bring them back again. And then TACO again. And then... ooh look, shiny thing! Shall we bomb Iran some more?