According to the Field Poll released Thursday, Bernie Sanders is in a statistical dead heat with Hillary Clinton going into Tuesday’s California Democratic primary. | AP Photo Another poll shows Sanders, Clinton even in California

Less than a week before California voters head to the polls on Tuesday, the Democratic race between Hillary Clinton and Bernie Sanders is effectively tied in the state, according to the results of the latest Field Poll released Thursday, as reported by local media outlets, including the Sacramento Bee and San Francisco Chronicle.

Clinton leads Sanders 45 percent to 43 percent, with 12 percent undecided or unreported. In the last survey in April, Clinton led Sanders by 6 points — 47 percent to 41 percent. The results in the latest Field survey mirror those of the NBC News/Wall Street Journal/Marist poll out Wednesday evening, which showed Clinton with a lead of 49 percent to 47 percent.


Sanders has devoted most of his resources to winning California, holding multiple events in the state in recent weeks as he looks to bolster his case with superdelegates at the Democratic National Convention. Both Hillary and Bill Clinton will return to the state carrying the largest delegate prize in the days leading up to the Tuesday vote.

While Sanders holds a double-digit advantage over those expressing no party preference (54 percent to 40 percent), Clinton leads by a slightly smaller margin among the nearly 8 in 10 likely Democratic primary voters who identified as Democrats (49 percent to 40 percent).

As has been the case in nearly every state and national poll, Sanders holds wide advantages with voters under the age of 40 and with first-time voters, while Clinton leads among voters older than 40. Clinton and Sanders are within the margin of error among white, non-Hispanic voters (where Clinton leads 44 percent to 43 percent) and among Latino voters (Clinton 46 percent, Sanders 42 percent). Among African-American voters, Clinton leads by 21 points — 57 percent to 36 percent. But among Asian-Americans, Sanders leads 47 percent to 34 percent. In all instances, Sanders has either cut into Clinton's advantage with all groups or, as is the case with non-Hispanic white support, Clinton's level of support has slightly dipped.

Sanders voters indicated a higher level of enthusiasm for their candidate compared with Clinton voters, with 65 percent of those backing the Vermont senator saying they are enthusiastic about their choice compared with 45 percent who said the same of Clinton. And while Sanders' favorability numbers have largely held steady over the past several months in the survey, Clinton's image rating has dropped to 64 percent favorable in the latest survey, down 6 points from April.

Enthusiasm is growing for Donald Trump on the Republican side of the race, with a net positive rating of 25 points (60 percent favorable to 35 percent unfavorable) in the latest survey, a net increase of 10 points from April, when those numbers sat at 53 percent favorable to 43 percent unfavorable.

In hypothetical general election matchups with Trump, Clinton and Sanders both lead the presumptive Republican nominee, though as has long been the case, Sanders’ margin over Trump is larger than Clinton’s. While Clinton leads Trump 53 percent to 34 percent, Sanders leads 60 percent to 31 percent.

Interviews for the Field Poll were conducted over May 26 through Tuesday, a larger window than the Sunday through Tuesday period for the NBC News/Wall Street Journal/Marist survey.

The telephone poll surveyed 1,002 likely voters in California with an overall margin of error of plus or minus 3.2 percentage points, including 571 likely to vote in the Democratic primary with a margin of error of plus or minus 4.1 percentage points and 351 likely to vote in the Republican primary, with a margin of error of plus or minus 5.4 percentage points.