Are Political Orientations Genetically Transmitted?

@article{Alford2005ArePO,
  title={Are Political Orientations Genetically Transmitted?},
  author={John R. Alford and Carolyn L. Funk and John R. Hibbing},
  journal={American Political Science Review},
  year={2005},
  volume={99},
  pages={153 - 167}
}
We test the possibility that political attitudes and behaviors are the result of both environmental and genetic factors. Employing standard methodological approaches in behavioral genetics—specifically, comparisons of the differential correlations of the attitudes of monozygotic twins and dizygotic twins—we analyze data drawn from a large sample of twins in the United States, supplemented with findings from twins in Australia. The results indicate that genetics plays an important role in… 
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