JAMES TARANTO ON THE POLITICS OF SINGLE MOTHERHOOD: “There is a political as well as an ideological aspect to the left’s disparagement of marriage and celebration of single motherhood. As pollster John Zogby notes in a Forbes.com column, the ‘marriage gap’ between Democrats and Republicans is ‘even more dramatic’ than the so-called gender gap. . . . If these numbers hold up in November, it will be good news for Republicans. But if the marriage gap persists, then it will be in the Democratic Party’s long-term interests to undermine the institution of marriage.”