Also in Slate, Troy Patterson sizes up Obama's appearance on Mythbusters.
It doesn't seem plausible that the dearth of Republican scientists has the same causes as the under-representation of women or minorities in science. I doubt that teachers are telling young Republicans that math is too hard for them, as they sometimes do with girls; or that socioeconomic factors are making it difficult for Republican students to succeed in science, as is the case for some ethnic minority groups. The idea of mentorship programs for Republican science students, or scholarship programs to attract Republican students to scientific fields, seems laughable, if delightfully ironic.
Yet there is clearly something going on that is as yet barely acknowledged, let alone understood. As a first step, leaders of the scientific community should be willing to investigate and discuss the issue. They will, of course, be loath to do so because it threatens their most cherished myths of a pure science insulated from dirty partisanship. In lieu of any real effort to understand and grapple with the politics of science, we can expect calls for more "science literacy" as public confidence begins to wane. But the issue here is legitimacy, not literacy. A democratic society needs Republican scientists.