Democrat in disguise?

First Arnold Schwarzenegger decided to run for the governor of California as a Republican when his power base, the Kennedy family, is Democrat. Now even actor Rob Lowe joins his campaign, who is also a Democrat.

Is Arnie really just a Democrat in disguise? I don’t know enough to past judgement but it just make the whole process more entertaining. Not to mention that Rob Lowe may have confused his West Wing role with real life. What’s he going to do next? Sleep with a high class call girl?