It has taken a good deal longer than it should have, but Americans have now seen the con man behind the curtain. When, in January 2016, I wrote that despite being a lifelong Republican who worked in the previous three GOP administrations, I would never vote for Donald Trump, even though his administration would align much more with my policy views than a Hillary Clinton presidency would, a lot of my Republican friends were befuddled. How could I not vote for a person who checked far more of my policy boxes than his opponent? What I explained then, and what...