So, more thoughts on Donald Trump’s candidacy, because I can’t stop being fascinated.

You know the latest numbers. Quinnipiac University’s poll this week has Mr. Trump at a hefty 28% nationally, up from 20% in July. Public Policy Polling has Mr. Trump leading all Republicans in New Hampshire with 35%. A Monmouth University poll has him at 30% in South Carolina, followed 15 points later by Ben Carson.

Here...