It would appear that in the LA presidential returns, there are over a million votes split between Obama and Clinton. And yet, if you look at the numbers for Non-Partisan Voters who cast a Partisan Ballot, you'll find that less than 100k people successfully got counted in the Dem presidential race -- that's less than 10% of the ballots. N-Ps are ~20% of all registrants, and the only major primary they could vote in was Dem. (I think Dems are around 40%, so if all N-Ps voted in the Dem primary, they'd be a third of the voters in that race, not 10%. And at our polling station, that one-third figure is about right.)
We need competent registrars. And we need to support Debra Bowen in setting statewide standards for elections.