Yeah, he definitely seems untethered enough that any kind of threat seems risky to entirely dismiss. I don't think he's gonna do anything with the actual military against Canada, though. That's expensive, and his puppeteers don't see a big profit in it. He's kind of already acting as an occupying force within the US, and his hold on power here is tenuous; and war with Canada, who can actually hurt Americans on their home soil, would be even more unpopular than his various overseas entanglements.