Before Donald Trump, the Biden administration wrote to PM Justin Trudeau, and Congress had The Northern Border Caucus as Americans had real concerns about the proliferation of threats from Canada to the U.S. - Is it all posturing by Donald Trump that Canada is not fulfilling our agreement to have each other's back? Our guest says, indeed not only posturing by Trump. - On border security, the premiers are stepping up with their own plans, in the absence of federal leadership. And the premiers' plans can actually be implemented, while the federal plan "isn't really worth the paper it's written on." And on the subject of tariffs, does it make any sense for Canada to threaten retaliatory tariffs against the U.S.?  

Guest: Christian Leuprecht. Distinguished professor at Royal Military College;

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