From the Robert Draper piece:
[A]n elegant ... woman sat alone at the far end of the bar ... Her name was Priscilla Shanks, a New York-based stage and screen actress ... who had found a lucrative second career as a voice coach. Shanks's work with Sarah Palin was as evident as it was unseen. Gone, by the evening of her convention speech, was the squeaky register of Palin's exclamations. Gone (at least for the moment) was the Bushian pronunciation of "nuclear" as "nook-you-ler." Present for the first time was a leisurely, even playful cadence that signaled Sarah Palin's inevitability on this grand stage.
Shanks' name does appear in McCain's campaign finance report.
It's reported as: "Operating Expenditures / GOTV CONSULTING."
As in "Get Out the Vote."