Gov. Arnold Schwarzenegger, concerned that the decline in President Bush's popularity will pull down his special election measures, is not expected to appear with the president when he visits California next week. Bush is scheduled to attend a fundraiser in Los Angeles for the Republican National Committee on Thursday and help cut the ribbon Friday at the opening of the new Air Force One exhibit at the Ronald Reagan Presidential Library in Simi Valley. Although the governor's staff will not confirm his schedule this far in advance, sources said Schwarzenegger is not planning to attend either event. He is tentatively...