Yes there are in my precinct too. But that does not mean Democrats can't buy votes. Voter lists tell who voted and who did not. That is how they know Arnie did not vote teh last couple of years.
Precinct workers tell poor potential democratic voters .. especially poor single moms working at menial jobs and not very political... go vote. Here is your sample ballot. Promise me you will vote just like the sample ballot. Then stop by my house two weeks after the election. It the records show you voted I will have a 10 dollar bill for you. Those that get $2.50 an hour plus tips at the Pizza hut or work for the minimum wage at the 7-11 do it even in Orange county. Davis will get a number of votes that way in just 45 more days. It remains to be seen if it will be enough.
That is all they needed for the old system. But it only works where there are only Democrat poll workers. Betcha there are lots of precincts in LA that only have Democratic poll workers.