What’s Driving California’s Most Expensive Ballot Proposition

Over $140 million has been spent on the battle over Proposition 8, which would limit dialysis industry revenue. But health care experts say they have no idea how it could impact patients if it passes in November.

Adrian Perez undergoes dialysis at a DaVita Kidney Care clinic in Sacramento, Calif. on Sept. 24. If approved by voters in November, Proposition 8, would limit dialysis clinics' profits.
AP Photo/Rich Pedroncelli