7. American Jews are very likely to judge a candidate (and regular people too) based on how they present themselves. If you come up swaggering with a 10 gallon hat on, dropping your gs, and trying to be a "regular guy," that doesn't play well with Jews. We want somebody who looks more professional.
It seem more of a case wanting someone who are more like you (white-collar worker)than anything else. In fact it seem the one thing almost all voter segment have in common, they prefer politician who talk like them and behave like them.