The percentage of respondents believing in human evolution is plotted simultaneously against political view (conservative, moderate, liberal), education (high school or less, some college, graduate school), and respondent’s religious denomination (fundamentalist or not). Belief in evolution rises along with political liberalism, independently of control variables.
At least education is still doing some good - belief in evolution is correlated positively with the level of education (with the exception of high school and college educated fundamentalists). I'm not sure what to make of the political result - perhaps a social scientists can shed more light on it and we defintely need more data. It will also be interesting to see if this political view correlation also exists in UK and other western European countries.