Susan Kennedy has been described as Satan, a sellout, a traitor, a spy -- and a brilliant political operative. And if that's not enough, Kennedy -- the Democratic workhorse who has become Republican Gov. Arnold Schwarzenegger's chief of staff -- has recently assumed one more title: head campaigner. As she goes around the state -- from boardroom to business group, talking up Schwarzenegger's $222 billion Strategic Growth Plan -- the former top aide to Democratic Gov. Gray Davis is unapologetic about her chief priority these days: "To get Arnold Schwarzenegger re-elected.'' --snip-- In an unusual arrangement, she is paid as...