Today Cindy McCain is "chairman" of the company, but her role is strictly hands off. When not campaigning, she prefers tooling around Phoenix in her company Lexus, with its "MS BUD" plates, to managing beer sales.

For McCains, a Public Path but Private Wealth
By DAVID M. HALBFINGER
August 23, 2008

Cindy McCain told of his gentle reaction when she wrecked the car he had bought her after she graduated from the University of Southern California, according to people who were there. She did not mention, as a former employee recalled, that it was a Porsche and that he replaced it with a Mercedes-Benz. When the young Cindy Hensley began teaching high school and was criticized for driving a fancy car, the ex-employee said, her father bought her a Volkswagen to drive to school.
[...]

She crisscrosses the country on the company jet, keeps an accountant on the company payroll to mind her personal finances, drives a company Lexus with “MS BUD” plates...