People vote for presidential candidates not only on the substance of message, but on style.

"Style" includes the "likeability factor," and at its heart is the voter's perception about whether the candidate has connected and reached him or her in a way that fosters a sense of comfort. Another factor is "confidence," conveyed by the projection of presence along with the voter's discernment that the candidate's experience and values translate outwardly from an inner core of self-assuredness. Both of these ...