Coyne: Art of no deal—Canada’s only winning move is not to play

Andrew Coyne: (Mr. Trump) He has no coherent negotiating objectives, nor any vision of the Canada-U.S. trade relationship he would like to achieve. It is not clear whether he is using tariffs as bargaining chips, or just because he likes tariffs, much as he likes breaking things, being the centre of attention, and frightening people. Suppose they are bargaining chips: that is all he brings to the table. He offers no concessions of his own; only demands, backed by threats…