ejh,

As I've said elsewhere in the comments to this article, both Trump and Trudeau will try hard to avoid their differences of personal style and substance become an impediment to the maintenance of productive US-Canada bilateral relations.

Steady management of trade relation between their two nations is important to each and neither leader will want to place these relations at risk gratuitously by allowing personal differences between the leaders become the focus of relations.

In any case, the focus of both Canada and the US will be upon the development by each of its relations with trading partners outside the US-Canada sphere of interest.  At worst, both will simply let the proverbial sleeping dogs lie in their nations' bilateral relations which are basically sound. This will leave each free to address relationships further abroad.