When the early vote by mail was reported on election night in California, if you remember, Clinton got as much as 62% with around a 400,000 vote margin. That margin held for several hours as her percentage lead shrunk, with the candidates splitting the election day vote about evenly, but when Los Angeles County started catching up to other areas, her lead started growing again, to 438,537. By 5pm EDT June 8th, when most news sites stopped updating, Clinton led 1,940,580 to 1,502,043, 56% to 44%, but nobody knew how the vote would come in over the next few days. As Bernie said:
The Vermont senator said he would “of course” be competing in the final Democratic primary in Washington, D.C. next week, and that he looked forward “to the full counting of the votes in California which I suspect will show a much closer vote than the current vote tally.”
By 10pm EDT June 10th, the latest totals show Clinton leading 2,128,194 to 1,653,416, which means 338,937 more ballots for the candidates have been counted. Clinton got 187,614, Sanders 151,373, which works out to a 55% to 45% split in the late votes, growing Clinton’s lead by 36,241 to 474,778. In other words, it looks like the late votes being counted so far match earlier votes already counted. Maybe more Latino votes are being counted late, or maybe the mix of ballots mailed before versus on election day, but received after, is similar to the mix of early versus in person election day votes. Either way, Clinton is holding on to her 10 or 11 point vote margin, and her pledged delegate count.
UPDATE: Here is the latest information on the CA vote counting process from the Los Angeles Times:
For the politically curious, it's the best guessing game around: What's in the uncounted ballots from election day, and how many of them will change closely watched races across the state?
On Friday afternoon, Secretary of State Alex Padilla reported that there were 2,423,607 uncounted ballots statewide. About two-thirds of those are vote-by-mail ballots, with three Southern California counties leading the way: Los Angeles, San Diego and Orange.
Reports from a number of the state's 58 counties haven't changed for a few days, so expect the figures to shift pretty noticeably by early next week.
And one other part of the process: This is the first year in which ballots that arrive up to three days late -- Friday would be the deadline -- can be counted. So the number of ballots on hand could also change.
I’m not clear exactly how many of those uncounted ballots are included in the later 10pm EDT totals, but as of 5pm EDT on Wednesday, Los Angeles County was 57% Clinton, San Diego and Orange 55%, and as of 10pm EDT on Friday those percentages are holding in LA, San Diego, and Orange Counties.
UPDATE2: PolitiFact has a quote from the Sanders campaign about CA that I had not seen elsewhere.
"No one’s questioning the fundamental integrity of the election," Ben Tulchin, Sanders’ national pollster, told PolitiFact California, in an interview on June 10, 2016.
Tulchin added that the campaign believes California can do more to make it easier for independents to vote in a Democratic primary.
The Sanders pollster said the campaign expects the California "race to close substantially," perhaps "to low single digits," once all the votes are counted.
As for overtaking Clinton’s lead, Tulchin said "there’s a small chance. But it would be highly unlikely."