Who could such a mysterious dark horse be? Well, it’s not as if every well-qualified contender is already on the field. Mitch Daniels was probably the most successful Republican governor of recent times, with federal executive experience to boot. Paul Ryan is the intellectual leader of Republicans in the House of Representatives, with national campaign experience. The House also features young but tested leaders like Jim Jordan, Trey Gowdy and Mike Pompeo. There is the leading elected representative of the 9/11 generation who has also been a very impressive freshman senator, Tom Cotton. There could be a saner and sounder version of Trump—another businessman who hasn’t held electoral office. And there are distinguished conservative leaders from outside politics; Justice Samuel Alito and General (ret.) Jack Keane come to mind.