Sanders surges into lead in California: poll

A new poll finds Sen. Bernie SandersBernie SandersDNC warns campaigns about cybersecurity after attempted scam Overnight Health Care — Presented by American Health Care Association — Trump taps Pence to lead coronavirus response | Trump accuses Pelosi of trying to create panic | CDC confirms case of 'unknown' origin | Schumer wants .5 billion in emergency funds Biden looks to shore up lead in S.C. MORE (I-Vt.) leading the field of Democratic contenders in California, where about 40 percent of all the convention delegates will be allocated on Super Tuesday.

The latest survey from the Los Angeles Times and University of California, Berkeley finds Sanders at 26 percent support, followed by Sen. Elizabeth WarrenElizabeth Ann WarrenBiden looks to shore up lead in S.C. Hillicon Valley: Dems cancel surveillance vote after pushback to amendments | Facebook to ban certain coronavirus ads | Lawmakers grill online ticketing execs | Hacker accessed facial recognition company's database Push for national popular vote movement gets boost from conservatives MORE (D-Mass.) at 20 percent, former Vice President Joe BidenJoe BidenBiden looks to shore up lead in S.C. Hillicon Valley: Dems cancel surveillance vote after pushback to amendments | Facebook to ban certain coronavirus ads | Lawmakers grill online ticketing execs | Hacker accessed facial recognition company's database Vulnerable Democrats brace for Sanders atop ticket MORE at 15 percent, former South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegBiden looks to shore up lead in S.C. Vulnerable Democrats brace for Sanders atop ticket The Hill's Campaign Report: Gloves off in South Carolina MORE at 7 percent and former New York City Mayor Michael BloombergMichael Rubens BloombergGiuliani: Bloomberg 'jeopardized' stop and frisk by 'overusing it' Bloomberg calls on Trump to implement firearm background checks The Hill's Campaign Report: Gloves off in South Carolina MORE at 6 percent.

Candidates must hit 15 percent support statewide or in individual congressional districts to win delegates in the March 3 primary.

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Sanders is up 7 points over the same poll from September, while Warren has fallen by 9 points in that time.

The Vermont senator leads the field among the most liberal Democrats, who make up about one-third of the California electorate. He has a majority of support among voters under the age of 30 and leads Biden, the next closest contender, by 20 points among Latino voters.

The Sanders campaign announced Tuesday it would launch its first ads in Super Tuesday states, spending $2.5 million between California and Texas.

Biden leads among voters 65 and older at 22 percent support, followed by Warren at 16 percent and Sanders at 14 percent.

Warren outperforms the field among the most educated voters, with a 9-point lead over Sanders among those with post-graduate degrees.

The UC-Berkeley IGS poll of 2,895 likely Democratic primary voters was conducted Jan. 15–21 and has a 2.5 percentage point margin of error.