2. Given his varied background, he is not petrified of losing the support of the Republican National Committee, as so many other politicians seem to be. In other words, he does not seem paralyzed by career calculations. If he loses, he can go back to the Senate or do many other things.

3. He’s 44 years old, young enough to be the child of any of the current contenders. If younger voters do not get Sen. Bernie Sanders in the general election and cannot bring themselves to vote for Hillary Clinton or a blowhard billionaire, how about a dynamic brainiac (with a PhD from Yale) who’s fed up with both parties? In his Facebook open letter, he observed, “Neither political party works. They bicker like children about tiny things, and yet they can’t even identify the biggest issues we face. . . . One of the bright spots with the rising generation, though, is that they really would like to rethink the often knee-jerk partisanship of their parents and grandparents. We should encourage this rethinking.”

4. If center-right voters are appalled at Trump’s indifference to facts and dearth of solutions, there is Sasse, who has a fine-tuned grasp of policy. (Recall that he made some of the most informative and effective videos explaining the flaws in the Joint Comprehensive Plan of Action.) The duo of Sasse in the White House and Speaker Paul D. Ryan (R-Wis.) in the House has a lot of appeal to those who want to accomplish conservative aims.