Man, how miserable is Michelle Obama? About 2½ years into her ceremonial stint as first lady, Mrs. Obama seems to have had quite enough of the gig. More to the point, she doesn’t seem to have ever warmed to the second-fiddle slot as other first ladies before her did. And even more than that, she doesn’t seem all that happy with the man she married 19 years ago. A look at just this past month is illuminating. On Aug. 9, the first lady sneaked out of Washington and flew aboard a government plane to Corvallis, Ore. On board, dozens of...