The votes of unmarried women can determine the outcome of this election. The gender gap is real. Since 1980 a higher percentage of women than men have been voting for a given candidate, and they have tended to vote in higher percentages for Democrats. But that’s not the whole story. There is even a larger gap between married women and those who are single, divorced, separated or widowed. The gap between those women and married women is a whopping 34 percent (except those over 65) according to Page Gardner of Women’s Voices, Women’s Vote. These are precisely the women who are the most deeply...