Truth be told, enthusiasm is actually a stronger indicator of election victory than the ridiculous fake polls that the media puts out there. Enthusiasm cannot be precisely measured, but you can feel it in the excitement of the rally crowd in Tulsa and the pre-rally video clips of people waiting in line and merchants selling Trump gear and apparel. The devil is in the details. The difference between Trump and Biden is especially stark in the promotion and publicity area. It really helps when the candidate being sold—President — Donald J. Trump — is a tremendous performer. But it’s...