Wayne, Valentino, and Oceno’s research, conducted in June, found hostility toward women was a major factor, predicting support for Trump more strongly than authoritarian attitudes and about as well as racial prejudice. The political scientists used a four-question survey to determine sexist attitudes, asking if people agreed with the following statements:

1. Most women interpret innocent remarks or acts as being sexist.
2. Many women are actually seeking special favors, such as hiring policies that favor women over men, under the guise of asking for equality.
3. Feminists are not actually seeking for women to have more power than men.
4. Feminists are making entirely reasonable demands of men.

The survey also asked how strongly respondents supported Clinton or Trump. The higher they were on the sexism scale, the more likely they were to support Trump and the less likely they were to support Clinton. Hostile sexism was nearly as good at predicting support for Trump as party identification was.

Hostility toward women is one of the strongest predictors of Trump support – Vox

hmmmm