Perhaps there is a landing spot for this deal but it would require the Liberal government of PMT to take a little water with their wine.  The landing zone might look like this, a place where PMT and Freeland give up their non-starter demand for progressive social principles to be woven into the agreement; where we negotiate for ourselves rather than tread water with the lead weight of Mexico; that we finally give up our insane insistence that supply management in dairy and poultry production are sacrosanct.  In return we might insist that the Americans give up their nonsensical restrictions on softwood lumber and their demand to dismantle the dispute mechanism.  This degree of compromise could in turn give rise to new areas of agreement in the area of high tech and IT which are of considerable concern to both countries and pave the way for an overall agreement.  Yes Trump is being doctrinaire and uncompromising, but then so is Trudeau and until someone blinks there will no deal.