Workers at a hospital and two nursing homes in Hollister, CA, have voted to remain in the Service Employees International Union rather than join a rival group launched by former officers of the giant labor organization. The election was the latest skirmish between the SEIU and the upstart National Union of Healthcare Workers, which has filed election petitions to represent nearly 100,000 employees in California. The SEIU won the Hollister contest by a vote of 73 to 53, although the new union said it planned to challenge the results on legal grounds.