I was particular struck by the work done on "normal" people (as opposed to political candidates):
The researchers found that liberal individuals were less likely to use words that would make them appear highly competent when the person they were addressing was presumed to be black rather than white. No significant differences were seen in the word selection of conservatives based on the presumed race of their partner. 'It was kind of an unpleasant surprise to see this subtle but persistent effect,' [Yale professor Cyndee] Dupree says. 'Even if it’s ultimately well-intentioned, it could be seen as patronizing.'
