http://www.thedartmouth.com/article/2018/05/a-survey-of-dartmouths-political-and-free-speech-climate
"While 82 percent of respondents who identified Democrats say they would be less likely to date someone with opposing political beliefs, only 47 percent of Independents and 42 percent of Republicans said the same. Similarly, 55 percent of Democratic respondents said opposite political views would make them less likely to befriend another student, compared to 21 percent of Independents and 12 percent of Republicans. Only gender plays nearly as strong of a role in dividing responses. For example, 83 percent of women said they would be less likely to date someone with opposing political views compared to 56 percent of men."