The US and Mexico are under time pressure; Canada is not. We should NOT end the negotiations; instead, we should stall, dragging things out as long as possible. Canada has an international reputation for good-faith bargaining and for actually adhering to our bargains (there are exceptions; Canada has not kept its word on limiting CO2 emissions).  Let us enhance that reputation by remaining at the bargaining table for as long as there is a table to bargain at, and showing the world which country demonstrates good faith, and which does not.