Herman Cain has had a tough two weeks. So, will he remain the “flavor of the day?” Or of the month? Or even into January, when the first Republican presidential primaries and caucuses will be held? That is, can the successful Georgia businessman’s popularity surge among likely GOP voters be sustained, in light of accusations by anonymous women, and some not anonymous, that he sexually harassed them— charges he strongly denies—during his tenure as the National Restaurant Association’s chief executive officer? ((snip)) That said, however, a great majority of Cain’s critics go after him, not because he is black necessarily,...