Up to 46,000 Kaiser Permanente workers represented by an alliance of unions across multiple states plan to join picket lines over wages and staffing levels.

The walk-out began at 7 a.m. and is expected to continue through Sunday morning. In Downey, dozens of workers walked off the job at a Kaiser medical center in the pouring rain. " If we're out here, there's something wrong in there," said ICU nurse Julie Castle.