The chart above was made from the results of a survey done by the Public Policy Institute of California -- completed between May 13th and 22nd of a random sample of 1,704 California voters, with a 3.3 point margin of error.
It shows that Clinton and Sanders are close in California. I'm sure that will make Sanders' supporters happy, but it really doesn't matter at this point. Clinton only needs 78 delegates to clinch the nomination -- and she will easily get more than that in the Virgin Islands, Puerto Rico, and New Jersey.
California, Montana, New Mexico, North Dakota, and South Dakota (and the District of Columbia a week later) will just pad Clinton's winning margin by a few hundred delegates. And it really doesn't matter if she wins or loses in those states and territories, since she will top 2383 either way.
