Former Hewlett-Packard CEO Carly Fiorina may or may not be on Arizona Sen. John McCain's short list for vice president, but she already is taking a crucial role in the Republican presidential hopeful's campaign. In March, Fiorina was picked by the Republican National Committee to chair a group directed to raise money and get out the vote for this year's elections. Shortly after that move was announced, Fiorina was interviewed by Business Week about her role. "My role is to be the primary advocate for John McCain and for the Republican Party," she said. "Certainly there are a lot of...