It is highly unlikely Trudeau will be foolish enough to start commenting on internal politics and policies in the U.S. He was very good at avoiding saying anything negative about Trump, probably because he had some smart advisers who told him to stay away from saying anything, "just in case the unthinkable happens". 

I think Trudeau should stick up for our interests and leave internal U.S. politics to the citizens of the U.S. 

They elected him, so he's their problem now.