Critics should also focus on attacking Mr. Trump’s positions on their merits, not on his rhetoric. Take the threat he poses seriously, but don’t exaggerate it. Each and every Trump pronouncement is not one step closer to the end of the world.Above all, don’t respond intemperately. The President’s shock tactics encourage both followers and opponents to go overboard. But there is no victory in retaliating in a similar fashion, or in becoming enraged by his calculated hypocrisies and lies, which are only meant to provoke.