The only thing that makes nightmares tolerable is that you never do experience the consequences. You might be falling from a great height, but you wake up — or miraculously change scenery — before you can hit the ground, or even wonder about survival. For most of the world, Donald Trump’s election feels like a nightmare that lacks that one saving grace. For the last few days we have all been in free fall, with the ground fast approaching, except that we also know we are wide awake. We must not underestimate the possibility that Donald Trump may prove a serious threat to liberal democracy in the United States.