i got the same call and it left the same message. it just repeated "If you are registered to vote in California press one, otherwise press two." over and over until I deleted the message.
I kept getting this call during evening hours (8-9pm). The pre-recorded message asks if I'm registered to vote in California, which I am, but for grins I decided to press #2 where I was informed that "I have no more questions for you". Annoying! One more call and I'll see if the FCC can do anything about this.