Trump is determined to pursue his trade war – and he may be difficult to stop

The president’s minions have trawled the statutes to restore roadblocks to trade. The invocation of Smoot-Hawley looks especially dangerousDonald Trump may have found the killer weapon to punish countries at will: by imposing tariffs on their exports to the United States.The president has been looking for a new tool since February, when the supreme court struck down tariffs he slapped on virtually all of America’s t…