The U.S. president wants to stick it to Canadian lumber producers, dairy farmers, and steel producers.
But hey, Donald Trump is happy it's the 150th anniversary of Confederation and he thinks Canadian people are "great".
How do we know this?
Because he put out the following tweet before going on Twitter rants about CNN, fake news, "crazy" NBC broadcaster Joe Scarborough, and "dumb as a rock Mika" Brzezinski.
Here's what others were saying today about Canada Day.