"Despite presumable personal distaste for him;"

We have to think this is what Trump will also think about Trudeau.  And I am of the opinion that Trump will not hold back.  This is when Trudeau will be tested.  Some will see him as too weak and some will see him as reaching too far.  Trump wants to make you squirm so he can assess your vulnerabilities.  From there he wil know how he can get the best deal for USA.