# 2018 California's 39th congressional district election

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vte :
The 2018 California's 39th congressional district election was held on Tuesday, November 6, 2018, with a primary election being held on June 5, 2018. Incumbent Republican Representative Ed Royce retired instead of running for a 14th term.
This election was one of 53 House elections that were held in California and 435 held nationwide, but it was called "the weirdest race in the country" due to an over-abundance of Democratic candidates potentially spoiling the ability for any Democrats to place first or second in the primary. Under election rules, the top two vote-getters in the jungle primary advanced to the November general election, regardless of party affiliation.
The primary election was held on June 5, 2018. Republican Assemblywoman Young Kim and Democrat Gil Cisneros came in first and second place respectively, assuaging fears that two candidates from the same party would advance.
The general election was held on November 6. On November 17, AP News projected that Cisneros had won the election.

## Background

The 39th district straddles the Los Angeles–Orange–San Bernardino tri-county border and includes Chino Hills, Diamond Bar, and Fullerton.
In January 2018, Republican Ed Royce, who had represented the 39th district since 2013 and previously represented the 40th district from 2003 to 2013 and the 39th district from 1993 to 2003, announced his plans not to run for reelection. During his tenure in Congress, Royce was chairman of the United States House Committee on Foreign Affairs. According to Rep. Steve Stivers, Republicans needed to win in suburban districts like Orange County's to hold their majority.
After Royce's retirement, the district was considered a prime opportunity for a Democratic pickup, citing dissatisfaction with the Trump administration and the strength of Hillary Clinton's 8 percent lead in the district's vote in the 2016 United States presidential election. The proportion of voters in the district who were registered Republican dropped from 40 to 35 percent since 2012, but Republicans believed that their turnout would be significantly larger than Democrats'. Moreover, as of January 2018, there were still more voters in the district registered as Republicans than as Democrats (128,375 to 123,849).
Democrats hoped to have a demographic advantage in this district, since it was less than 30 percent white. However, several commentators (including Cook) speculated that an Asian American nominee would have an edge in this district, regardless of party, as Democrat Jay Chen did against Royce in the 2012 district election. In 2018, the district was conservative and upper-middle class with only 35 percent of the population identifying as Hispanic and the majority identifying as white or Asian. Specifically, Asians made up around 32 percent of the district.
Royce's retirement led the Cook Political Report to move CA-39 from lean Republican to lean Democratic. The New York Times rated this district a tossup.

## Primary election

The primary election in 2018 had a large number of Democrats and Republicans. As the election drew near, Democratic organizations like the Democratic Congressional Campaign Committee (DCCC) became concerned that the flood of Democratic candidates might split the vote, causing two Republicans to win the nomination. In June, the race was reported to be the most expensive race in California, drawing $10 million in spending. A majority of the spending was attributed to Democratic frontrunners Gil Cisneros and Andy Thorburn, who were able to personally fund their own respective campaigns, and ran increasingly negative ads targeting one another. On June 5, Republican Young Kim and Democrat Gil Cisneros finished in first and second place, advancing to the general election.

### Candidates

The district had 17 candidates heading into the June 5 primary — six Democrats, seven Republicans, two American Independents and two no party preference candidates.
A poll from Fight Back California PAC found that when presented with a list of the three Republicans and four Democrats with some name recognition, Republican Young Kim led the pack with 21 percent of the vote, followed by Republican Bob Huff (19 percent), Democrat Gil Cisneros (16 percent), and Democrat Andy Thorburn (16 percent).
During the primary, initially seven Democratic candidates split the vote in the district, all but blocking the party from making an endorsement there; the district was one of three (the other two being the 48th and 49th) that Democrats were concerned they could lose in the primary due to vote-splitting. The party held a pre-endorsement conference in January and urged some candidates to withdraw.
Although the Democratic Congressional Campaign Committee backed Gil Cisneros, including by adding him to its "Red to Blue" program, which offered designated candidates financial and organizational support, it did not officially endorse him. Tran was endorsed by Emily's List and by the Feminist Majority Foundation. The California and Orange County Democratic parties did not endorse anyone. Thorburn was endorsed by the California Nurses Association.
Scientist Phil Janowicz dropped out of the race to avoid splitting the Democratic vote. Potential candidate Jay Chen also opted not to run, saying, "The greatest contribution I can make right now is to help consolidate the field, by stepping away from it." The DCCC praised his move. Chen's dropping out was cited as an example of how self-funding millionaires drove less wealthy Democrats out of California primaries, as Cisneros obtained his wealth from winning a Mega Millions lottery jackpot.
Republicans were less eager than Democrats to thin the herd of candidates, which was why the Young Guns program included both Kim and Nelson on its list.

#### Republican

Republican candidates campaigned chiefly on increased border security and an end to California sanctuary state law.

##### Bob Huff

Bob Huff is a former state senator who represented California's 29th State Senate district.
Organizations
* San Diego Asian Americans for Equality
* Silicon Valley Chinese Association

##### Young Kim

Young Kim is a former assemblywoman who represented California's 65th State Assembly district. She emigrated from South Korea in 1975, graduated from University of Southern California in 1981, worked in a bank and then as a controller of a ladieswear manufacturing firm. She served in Royce's congressional office for 21 years as community liaison and director of Asian affairs, and received Royce's endorsement.
Kim said she wants to create jobs and keep taxes low. She said she wanted to increase border security and ensure those brought to the U.S. "as children without legal documentation are treated fairly and with compassion."
Federal-level officials
* Rosario Marin, former U.S. Treasurer
U.S. representatives
* Ed Royce (R-CA-39)
* Mimi Walters (R-CA-45)
State assembly members
* Jordan Cunningham, assemblyman
* James Gallagher, assemblyman
* David Hadley, former assemblyman
* Tom Lackey, assemblyman
* Bob Pacheco, former assemblyman
* Jim Patterson, assemblyman
* Jim Silva, former assemblyman/supervisor
Local-level officials
* Michael Antonovich, LA County supervisor (ret.)
* Don Bankhead, former mayor, City of Fullerton
* Christine Barnes, former mayor, City of La Palma
* Bruce Barrows, former mayor, City of Cerritos
* Stacy Berry, councilwoman, City of Cypress
* Patrick Brenden, councilman, City of Huntington Beach
* Tara Campbell, councilwoman, City of Yorba Linda
* Joe Carcchio, councilman, City of Huntington Beach
* Carol Chen, former mayor, City of Cerritos
* Cynthia Coad, former supervisor, OC Board of Supervisors
* Laurie Davies, councilwoman, City of Laguna Niguel
* Diane Dixon, councilwoman, City of Newport Beach
* Jim Edwards, councilman, City of Cerritos
* Al Ethans, councilman, City of Stanton
* Diana C. Fascenelli, councilwoman, City of Villa Park
* Michael Gates, city attorney, City of Huntington Beach
* Gerard Goedhart, councilman, City of La Palma
* James Gomez, councilman, City of La Habra
* Dean Grose, councilman, City of Los Alamitos
* Charlene Hatakeyama, former mayor, City of La Palma
* Kimberly Ho, councilwoman, City of Westminster
* Cecilia Hupp, mayor, City of Brea
* Sandra Hutchens, OC sheriff
* Dick Jones, former mayor, City of Fullerton
* Tim Keenan, City of Cypress
* Peter Kim, councilman, City of La Palma
* Stephanie Klopfenstein, councilwoman, City of Garden Grove
* Tony Lam, former councilman, City of Westminster
* Patsy Marshall, former mayor, City of Buena Park
* Pat McKinley, former police chief and councilman, City of Fullerton
* Steve Nagel, mayor pro tem, City of Fountain Valley
* Dr. Prakash Narain, former mayor, City of Cypress
* Mark Perumean, president of the board of directors, La Habra Heights County Water District
* Chris Phan, former councilman, City of Garden Grove
* Robbie Pitts, councilman, City of Villa Park
* Mike Posey, mayor, City of Huntington Beach
* Tony Rackauckas, DA, Orange County DA
* Rigoberto Ramirez, councilman, City of Stanton
* Greg Raths, mayor pro tem, City of Mission Viejo
* George Ray, councilman, City of Cerritos
* Ed Royce Sr., former mayor, City of Stanton
* Paul Ruiz, clerk of the board, Brea Unified School District
* Rhonda Shader, councilwoman, City of Placentia
* David Shawver, mayor, City of Stanton
* Marty Simonoff, councilman, City of Brea
* Michelle Steel, supervisor, OC Board of Supervisors
* Michele Steggell, councilwoman, City of La Palma
* Virginia Vaughn, mayor, City of Buena Park
* Michael Vo, City of Fountain Valley
* Mark Waldman, former mayor, City of La Palma
Educators
* Baltes, trustee, La Habra City School District
* Jack Bedell, trustee president, OC Board of Education
* Ryan Bent, trustee, North OC Community College District
* Dr. Joseph Chang, board trustee, Hacienda LA Puente USD
* Alexandria Coronado, former trustee, Anaheim Board of Edu
* Norman Hsu, retired board member, Hacienda La Puente USD
* Dr. Chae-Jin Lee, Claremont McKenna College
* Janny Meyer, Fullerton School District
* James Na, clerk of the board, Chino Valley Unified School District
* Hilda Sugarman, Fullerton School District
* Soo Yoo, president of the board, ABC USD
Individuals
* Josie Anderson, retired social services manager, City of La Habra
* John and Terri Briscoe, former president, CRA (ID only)
* One Chu, RH Parents and Education Foundation
* Jim Horn, retired diplomat, author, activist
* John Hsu, STC Leadership Academy, Rowland Heights
* Charles Kim, former vice chair, CA Acupuncture Board
* John Jungmin Kim, former chairman, CA Acupuncture Board
* Michael Kim, former Planning Commissioner, City of Brea
* Ed Laird, LCOC member
* Nancy Lee, president, BKSCA
* Elvira Moreno, president, Rep Club North Orange County
* Michael Schroeder, former California Republican Party chairman
* Michael Zhang, Esq., Law Offices of Michael Zhang, Chinese community TV personality and leader
Organizations
* National Association of Women Business Owners
* Republican Party of Orange County

##### Phil Liberatore

Phil Liberatore is a certified public accountant, founder of IRS Problem Solvers, and author of God, Money and You.

##### Shawn Nelson

Shawn Nelson was a former Orange County Supervisor at the time of the election; he is now a top official in the Orange County District Attorney's office.
U.S. representatives
* Dana Rohrabacher (R-CA-48)
State senators
* John Moorlach (R-37)
State assembly members
* Phillip Chen (R-55)
Local-level officials
* Kathryn Barger, Los Angeles County supervisor
* Andrew Do, Orange County supervisor
* Curt Hagman, San Bernardino County supervisor
Individuals
* Robert O'Neill, Navy SEAL combat veteran
Organizations
* Lincoln Club of Orange County
Newspapers
* Orange County Register

#### Democratic

Democratic candidates advocated for tax reform to end tax cuts for the wealthy. and supported universal health care. The candidates supported banning assault weapons and implementing universal background checks on gun purchases. Democratic candidate Andy Thorburn sent out mailers accusing candidate Gil Cisneros of investing millions of dollars in gun industry stock.

##### Andy Thorburn

Andy Thorburn is a former teacher and union activist who made his wealth in the insurance business. He was CEO of Foothill Ranch-based Global Benefits Group from 2005 to 2015, and remains its largest stockholder. Thorburn supported a Medicare for all healthcare system.
State senators
* Marty Block, former state senator
State assembly members
* Reggie Jones-Sawyer (D-59)
Local-level officials
* Gina Clayton-Tarvin, Ocean View School District board member
* Rick Tuttle, former Los Angeles city controller
Individuals
* Abel Valenzuela, director of UCLA's Institute for Research on Labor and Employment
Organizations
* Communications Workers of America Local 9510
* International Union of Painters and Allied Trades
* Machinists Conference of California
* National Nurses United
* Our Revolution
* United Steelworkers

##### Gil Cisneros

Gil Cisneros is a Navy veteran and former shipping and distribution manager at Frito-Lay who won a lottery jackpot of $266 million with his wife in 2010. Cisneros raised the issue of homelessness among veterans, vowing to fight any attempts to defund or weaken HUD-VASH.
Federal-level officials
* Arne Duncan, former Secretary of Education
U.S. representatives
* Pete Aguilar (D-CA-31)
* Nanette Barragán (D-CA-44)
* Salud Carbajal (D-CA-24)
* Judy Chu (D-CA-27)
* Lou Correa (D-CA-46)
* Grace Napolitano (D-CA-32)
* Lucille Roybal-Allard (D-CA-40)
* Raul Ruiz (D-CA-36)
* Linda Sánchez (D-CA-38)
* Loretta Sanchez, former congresswoman
* Norma Torres (D-CA-35)
State assembly members
* Chris Holden (D-41)
* Sharon Quirk-Silva (D-65)
* Blanca Rubio (D-48)
Local-level officials
* Manuel Baca, Mt. San Antonio College trustee
* Michael Blazey, La Habra mayor pro tempore
* Zeke Hernandez, Rancho Community College District trustee
* Jesus Silva, Fullerton city councilman
* Jeanette Vazquez, Fullerton Elementary School District board member
Individuals
* Dolores Huerta, labor organizer
* Eva Longoria, actress
* George Lopez, comedian
Organizations
* BOLD PAC
* Democratic Congressional Campaign Committee
* End Citizens United
* GIFFORDS
* League of Conservation Voters
* Serve America PAC
* Service Employees International Union California
* Sierra Club
* United Steelworkers
* Vote Vets

##### Sam Jammal

Sam Jammal is a former Obama administration official.
Federal-level officials
* Cecilia Muñoz, former director of the Obama White House Domestic Policy Council
Organizations
* Climate Hawks Vote
* Democracy for America
* International Longshore and Warehouse Union
* International Longshore and Warehouse Union, Local 13
* International Longshore and Warehouse Union, Local 63
* International Longshore and Warehouse Union, Local 94
* International Union of Painters and Allied Trades District Council 36
* Orange County Young Democrats

##### Mai Khanh Tran

Mai Khanh Tran is a pediatrician. Despite pressure from Democratic officials, she refused to drop out, saying she was "the only qualified woman, the only immigrant and the only physician in the race".
U.S. representatives
* Lois Frankel (D-FL-21)
State assembly members
* Kansen Chu (D-25)
* Ash Kalra (D-27)
Local-level officials
* Katrina Foley, Costa Mesa City Councilwoman
* Amy Thomas Howorth, Manhattan Beach mayor
* Wayne Lee, Millbrae councilman
* Polly Low, mayor of Rosemead
* Michele Martinez, Santa Ana mayor pro tem
* Diedre Thu-Ha Nguyen, Garden Grove City Councilwoman
* Ali Sajjad Taj, Artesia city councilman
Educators
* Dr. Shin Liu, Cerritos College Board of Trustees
* Jamison Powers, Westminster School Board
Organizations
* 314 Action
* AAPI Victory Fund
* Asian American Action Fund
* ASPIRE PAC
* California API Legislative Caucus
* CAPA 21
* Emily's List
* Feminist Majority Foundation
* Korean American Democratic Committee
* The Progressive Vietnamese American Organization (PIVOT)

### Primary election polling

| Poll source | Date(s) administered | Sample size | Margin of error | Gil Cisneros (D) | Steve Cox (NPP) | Bob Huff (R) | Sam Jammal (D) | Young Kim (R) | Shawn Nelson (R) | Andy Thorburn (D) | Mai-Khanh Tran (D) | Steve Vargas (R) | Other | Undecided |
| Tulchin Research (D-Cisneros) | May 16–20, 2018 | 500 | ± 4.4% | 20% | – | 14% | 7% | 14% | 8% | 11% | 5% | 6% | 1% | 15% |
| Mellman Group (D-Thorburn) | March 30 – April 7, 2018 | 400 | ± 4.9% | 11% | – | 10% | 4% | 13% | 10% | 11% | 6% | – | – | 35% |
| Tulchin Research (D–Cisneros) | March 18–25, 2018 | 700 | ± 3.7% | 19% | – | 12% | 4% | 11% | 13% | 10% | 6% | 2% | 3% | 20% |
| Change Research (D) | March 4–8, 2018 | 680 | — | 16% | – | 19% | – | 22% | 9% | 16% | 6% | – | 11% | – |
| Change Research (D) | 10% | 5% | 12% | 5% | 15% | 6% | 8% | 4% | 7% | 33% | – |

### Fundraising

Millionaires Andy Thorburn and Gil Cisneros loaned their campaigns $2.3 million and $2 million respectively. As of March 31, Kim had raised more than $600,000, according to FEC filings, fourth most in the race and the most for a Republican. Kim received $178,000 in mailers and web ads, and $316,998 altogether, from the American Future Fund. The California Freedom and Prosperity Fund PAC spent about $85,000 opposing Kim, while spending five figures boosting Nelson.
In May, the race in the 39th district had seen the fourth most money spent of any House race in the nation. As of June, $10 million had been spent, making the race the most expensive in the state.

### Advertising

Young Kim was the first Republican in the election to launch a TV ad. The ad highlighted her connection to Royce, her record as a state legislator, and her family history. Two Democrats in the race, Navy veteran and lottery winner Gil Cisneros and Andy Thorburn, also launched TV ads in April. Sam Jammal narrated an advertisement from a dog's point of view.
As of May 15, 2018, House Majority PAC and Priorities USA Action planned to air ads targeting Bob Huff and Shawn Nelson, in an effort to help their chosen candidate, Cisneros. The Democratic Congressional Campaign Committee, a week prior, had made a nearly $450,000 ad buy targeting those same two candidates. The anti-Nelson ad accused him of hypocrisy over pensions. The anti-Huff ad said, "He huffs and he puffs but would make your taxes go up."
The DCCC ads did not target Young Kim, who was seen as the leading Republican and was endorsed by Royce to succeed him, since the purpose of the ads was to put a Democrat in the top two by ensuring that Kim was the only Republican to reach the general election. As of May, the DCCC undertook an operation including mailers and digital ads (via platforms such as Google, Facebook, Instagram, and Snapchat), aimed at registering and turning out the party's voters.
Cisneros and Thorburn each launched dueling websites panning their rival. Cisneros's campaign accused Thorburn of tax evasion, while Thorburn's camp had a site calling Cisneros a gun lover. In May, California Democratic Party Chairman Eric Bauman announced that he had helped to engineer a deal between Thorburn and Cisneros to stop attacking each other and instead focus on "promoting their positive visions" and "highlighting their contrast with the corrupt, incompetent Trump Republicans." Both candidates took down their negative websites against each other.
In May, the DCCC announced its first Spanish-language midterm TV ad in favor of Cisneros. The ad criticized Republicans for trying to cut funds for education and student aid, and for denying Dreamers a path to citizenship. Meanwhile, House Majority PAC sent out mailing pieces to Republican and independent voters tying Phil Liberatore to President Trump, a move to raise the underfunded Liberatore's name recognition and try to siphon off votes from other GOP candidates to him. The ads point out Liberatore's desire for a border wall and an end to sanctuary cities, and his endorsement by Joe Arpaio.

### Primary results

California's 39th congressional district election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Young Kim | 30,019 | 21.2 |
| | Democratic | Gil Cisneros | 27,469 | 19.4 |
| | Republican | Phil Liberatore | 20,257 | 14.3 |
| | Democratic | Andy Thorburn | 12,990 | 9.2 |
| | Republican | Shawn Nelson | 9,750 | 6.9 |
| | Republican | Bob Huff | 8,699 | 6.2 |
| | Democratic | Sam Jammal | 7,613 | 5.4 |
| | Democratic | Mai-Khanh Tran | 7,430 | 5.3 |
| | Democratic | Herbert H. Lee | 5,988 | 4.2 |
| | Republican | Steven C. Vargas | 4,144 | 2.9 |
| | Democratic | Suzi Park Leggett | 2,058 | 1.5 |
| | Republican | John J. Cullum | 1,747 | 1.2 |
| | No party preference | Karen Lee Schatzle | 903 | 0.6 |
| | No party preference | Steve Cox | 856 | 0.6 |
| | Republican | Andrew Sarega | 823 | 0.6 |
| | American Independent | Sophia J. Alexander | 523 | 0.4 |
| | American Independent | Ted Alemayhu | 176 | 0.1 |
| Total votes | Total votes | Total votes | 141,445 | 100.0 |

## General election

The primary election was held on June 5, 2018. Under election rules, the top two vote-getters in the jungle primary advanced to the November general election, regardless of party affiliation. Republican Assemblywoman Young Kim and Democrat Gil Cisneros came in first and second place respectively, advancing to the general election.

### Debate

2018 California's 39th congressional district debate :
| No. | Date | Host | Moderator | Link | Republican | Democratic |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | | |
| Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Key: P Participant  A Absent  N Not invited  I Invited W Withdrawn | Young Kim | Gil Cisneros |
| 1 | Oct. 16, 2018 | KOCE-TV | Rick Reiff | | P | P |

### Predictions

| Source | Ranking | As of |
| 538 | Tossup | November 6, 2018 |
| Daily Kos | Tossup | November 5, 2018 |
| RCP | Tossup | November 5, 2018 |
| Sabato's Crystal Ball | Lean R | November 5, 2018 |
| Inside Elections | Tossup | November 5, 2018 |
| The Cook Political Report | Tossup | November 5, 2018 |

### Polling

In the three months prior to the election, FiveThirtyEight projected a close race, with Kim and Cisneros each respectively having a 65.2% and 62.2% chance of winning at their peak.
| Poll source | Date(s) administered | Sample size | Margin of error | Young Kim (R) | Gil Cisneros (D) | Undecided |
| NYT Upshot/Siena College | October 18–23, 2018 | 496 | ± 4.6% | 46% | 47% | 7% |
| Tulchin Research (D-Cisneros) | September 28 – October 2, 2018 | 400 | ± 4.9% | 47% | 48% | 4% |
| UC Berkeley | September 16–23, 2018 | 552 | ± 6.0% | 48% | 49% | 3% |
| Monmouth University | September 13–16, 2018 | 300 LV | ± 5.7% | 51% | 41% | 8% |
| Monmouth University | September 13–16, 2018 | 402 RV | ± 4.9% | 46% | 42% | 12% |
| Tulchin Research (D-Cisneros) | August 1–6, 2018 | 600 | ± 4.0% | 42% | 53% | 5% |
| DCCC (D) | June 10, 2018 | – | – | 45% | 43% | – |
| Remington (R) | January 10–11, 2018 | 761 | ± 3.48% | 41% | 38% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Young Kim (R) | Mai Khanh Tran (D) | Undecided |
| Remington Research Group | January 10–11, 2018 | 761 | ± 3.48% | 42% | 33% | 25% |
| Poll source | Date(s) administered | Sample size | Margin of error | Ed Royce (R) | Gil Cisneros (D) | Undecided |
| Tulchin Research (D–Gil Cisneros) | November 12–19, 2017 | 500 | ± 4.4% | 48% | 44% | 8% |
| Poll source | Date(s) administered | Sample size | Margin of error | Ed Royce (R) | Democratic Opponent (D) | Undecided |
| PPP/Patriot Majority USA | December 11–12, 2017 | — | — | 43% | 46% | 11% |
| Poll source | Date(s) administered | Sample size | Margin of error | Generic Republican (R) | Generic Democrat (D) | Undecided |
| PPP/Patriot Majority USA | February 12–13, 2018 | 657 | ± 3.8% | 43% | 45% | 12% |
| Remington Research Group | January 10–11, 2018 | 761 | ± 3.48% | 47% | 47% | 6% |

### Results

The general election was held on November 6. In the first few days following the election, Young Kim was leading in the reported results. However, ballots in California only have to be postmarked on election day, and other races in California might have shifted from Republican election night leads to Democratic victories. The Mercury News reported speculation that Democratic swings in the days following the election were "due to Democratic voters being more likely to cast their ballots on election day or mail them in at the last minute, instead of voting early". This is a documented example of the American electoral phenomenon of blue shift. Over the next few days, Cisneros pulled ahead of Young Kim. On November 17, AP News projected that Cisneros had won the election. County officials published their final results on December 7, 2018.
California's 39th congressional district election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gil Cisneros | 126,002 | 51.6 |
| | Republican | Young Kim | 118,391 | 48.4 |
| Total votes | Total votes | Total votes | 244,393 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### Results by county

Results by county. Blue represents counties won by Cisneros. Red represents counties won by Kim.
| County | Cisneros (D) | Cisneros (D) | Kim (R) | Kim (R) | Total |
| County | Votes | % | Votes | % | Votes |
| Los Angeles | 34,356 | 58.2% | 24,725 | 41.8% | 59,081 |
| Orange | 78,059 | 49.3% | 80,123 | 50.7% | 158,182 |
| San Bernardino | 13,587 | 50.1% | 13,543 | 49.9% | 27,130 |
| Totals | 126,002 | 51.6% | 118,391 | 48.4% | 229,860 |