You’re right. Serves me right for not writing down anything about the pic.
Here is the caption for a different shot of the same group, that day:
BAKERSFIELD, CA - OCTOBER 3, 2004: (L-R) Mary Bono, Republican gubernatorial candidate Arnold Schwarzenegger, former New York City mayor Rudy Giuliani and Rep. Darrell Issa (R-CA) raise their arms during a rally October 3, 2003 in Bakersfield, California. Schwarzenegger continues on his four-day bus tour through California that began in San Diego and ends in Sacramento. There are six buses in the tour, all named after Schwarzenegger films.
Here are the names of the buses he should have used...