Conservative thinkers should recall that they helped create President Trump. They never blasted President Obama as he deserved. Mr. Obama’s policies punished the economy and made the country and its international standing worse year by year; his patronizing arrogance drove people crazy. He was the perfect embodiment of a one-term president. The tea-party outbreak of 2009-10 made it clear where he was headed. History will record that the press saved him. Naturally the mainstream press loved him, but too many conservative commentators never felt equal to taking him on. They had every reason to point out repeatedly that Mr. Obama was the worst president since Jimmy Carter, surrounded by a left-wing cabinet and advisers, hostile to Israel, crazed regarding Iran, and even less competent to deal with the issues than Mr. Carter was—which is saying plenty.

But they didn’t say plenty. They didn’t say much at all. The rank and file noticed and got mad. Even their supposed champions didn’t grasp what life under Mr. Obama was like—a man who was wrecking the economy while preaching little sermons, whose subtext was always how smart he was, how dumb they were, and how America was full of racist clods, dangerous cops and infantile nuts who would go crazy if they even heard the words “Islamic terrorism.” So the rank and file was deeply angry and elected Mr. Trump.