# 2024 United States House of Representatives elections in California

The 2024 United States House of Representatives elections in California were held on November 5, 2024, to elect the 52 U.S. representatives from the State of California, one from all 52 of the state's congressional districts. The elections coincided with the 2024 U.S. presidential election, as well as other elections to the House of Representatives, elections to the United States Senate, and various state and local elections. Six incumbent representatives, Barbara Lee of the 12th district, Adam Schiff of the 30th district, Katie Porter of the 47th district, Anna Eshoo of the 16th district, Tony Cárdenas of the 29th district, and Grace Napolitano of the 31st district, announced they would not seek re-election in 2024; Lee, Schiff, and Porter instead ran for U.S. Senate.
House Majority PAC, a super PAC affiliated with the Democratic Party, announced that it would target four California Republicans in 2024: Mike Garcia of the 27th district, Young Kim of the 40th district, Ken Calvert of the 41st district, and Michelle Steel of the 45th district. Garcia, Kim, and Steel all represent districts that Joe Biden won in the 2020 presidential election, while Calvert's district narrowly voted for Donald Trump. There were two other California Republicans who represent Biden-won districts, John Duarte of the 13th district and David Valadao of the 22nd district. The 13th, 22nd and 40th districts flipped to Trump in the 2024 presidential election, with Duarte losing to Adam Gray in a split ticket vote. Several California Republicans received assistance from Protect the House 2024, a joint fundraising committee launched by former U.S. Speaker of the House and California Republican Kevin McCarthy to support vulnerable House Republicans. Among the representatives included in the committee were Duarte, Valadao, Garcia, Calvert, and Steel, as well as Kevin Kiley of the 3rd district.

## Overview
### Statewide

United States House of Representatives elections in California, 2024 primary election — March 5, 2024 :
| Party | Party | Votes | Percentage | Candidates | Advancing to general | Seats contesting |
| | Democratic | 4,341,055 | 59.60 | 125 | 54 | 51 |
| | Republican | 2,836,256 | 38.94 | 88 | 49 | 48 |
| | No party preference | 71,144 | 0.98 | 21 | 1 | 1 |
| | Green | 15,741 | 0.22 | 2 | 0 | 0 |
| | Peace and Freedom | 14,042 | 0.19 | 3 | 0 | 0 |
| | Libertarian | 4,995 | 0.07 | 2 | 0 | 0 |
| Totals | Totals | 7,283,233 | 100.00 | 241 | 104 | — |
House seats
Democratic
82.69%
Republican
17.31% :

## District 1

The incumbent was Republican Doug LaMalfa, who had represented the district since 2013 and was re-elected with 62.1% of the vote in 2022.

### Candidates
#### Advanced to general

* Doug LaMalfa (Republican), incumbent U.S. representative
* Rose Penelope Yee (Democratic), financial advisor

#### Eliminated in primary

* Mike Doran (Democratic), Shasta Union High School District board member

### Endorsements
#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* American Independent Party
* California Republican Party

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* National Rifle Association Political Victory Fund

#### Labor unions

* IBEW Local 1245

#### Political parties

* California Democratic Party

#### Labor unions

* California Federation of Labor

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Doug LaMalfa (R) | $549,612 | $305,500 | $610,802 |
| Rose Penelope Yee (D) | $19,281 | $18,465 | $815 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | Solid R | March 10, 2023 |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | Safe R | February 5, 2024 |
| CNalysis | Solid R | November 16, 2023 |

### Results

California's 1st congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Doug LaMalfa (incumbent) | 122,858 | 66.7 |
| | Democratic | Rose Penelope Yee | 41,669 | 22.6 |
| | Democratic | Mike Doran | 19,734 | 10.7 |
| Total votes | Total votes | Total votes | 184,261 | 100.0 |
| General election |||||
| | Republican | Doug LaMalfa (incumbent) | 208,592 | 65.3 |
| | Democratic | Rose Penelope Yee | 110,636 | 34.7 |
| Total votes | Total votes | Total votes | 319,228 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 2

The incumbent was Democrat Jared Huffman, who had represented the district since 2013 and was re-elected with 74.4% of the vote in 2022.

### Candidates
#### Advanced to general

* Chris Coulombe (Republican), cannabis executive and candidate for this district in 2022
* Jared Huffman (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Jason Brisendine (no party preference), businessman
* Tief Gibbs (Republican), office manager
* Jolian Kangas (no party preference), automotive business owner

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California Republican Assembly
* California Rifle and Pistol Association (post-primary)
* Howard Jarvis Taxpayers Association
* Log Cabin Republicans PAC (post-primary)

#### Political parties

* California Republican Party

#### Organizations

* California ProLife Council
* California Rifle and Pistol Association (switched endorsement to Coulombe post primary)

#### Political parties

* American Independent Party

#### Political parties

* California Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Equality California
* Friends of the Earth Action
* Humane Society Legislative Fund
* J Street PAC
* League of Conservation Voters
* Natural Resources Defense Council
* Planned Parenthood Action Fund (post-primary)
* Population Connection Action Fund
* Santa Rosa Chamber of Commerce
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* North Bay Building Trades Council

#### Newspapers

* Marin Independent Journal

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Jared Huffman (D) | $485,944 | $377,881 | $1,036,873 |
| Chris Coulombe (R) | $64,851 | $52,815 | $12,422 |
| Tief Gibbs (R) | $25,938 | $22,080 | $3,858 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 2nd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Jared Huffman (incumbent) | 170,271 | 73.4 |
| | Republican | Chris Coulombe | 38,039 | 16.4 |
| | Republican | Tief Gibbs | 18,834 | 8.1 |
| | No party preference | Jolian Kangas | 3,276 | 1.4 |
| | No party preference | Jason Brisendine | 1,411 | 0.6 |
| Total votes | Total votes | Total votes | 231,831 | 100.0 |
| General election |||||
| | Democratic | Jared Huffman (incumbent) | 272,883 | 71.9 |
| | Republican | Chris Coulombe | 106,734 | 28.1 |
| Total votes | Total votes | Total votes | 379,617 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 3

The incumbent was Republican Kevin Kiley, who was elected with 53.2% of the vote in 2022.

### Candidates
#### Advanced to general

* Kevin Kiley (Republican), incumbent U.S. representative
* Jessica Morse (Democratic), former deputy secretary of the California Natural Resources Agency and runner-up for the 5th district in 2018

#### Eliminated in primary

* Robert Smith (no party preference), operational programs director

### Endorsements
#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* International Franchise Association
* Log Cabin Republicans PAC (post-primary)
* National Rifle Association Political Victory Fund
* United States Chamber of Commerce

#### Political parties

* American Independent Party
* California Republican Party

#### U.S. representatives

* Lois Frankel, U.S. representative from Florida (2013–present)

#### Political parties

* California Democratic Party
* Sacramento County Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* EMILY's List
* J Street (post-primary)
* Jewish Democratic Council of America (post-primary)
* National Women's Political Caucus
* Natural Resources Defense Council (post-primary)
* NewDem Action Fund (post-primary)
* Planned Parenthood Action Fund (post-primary)
* Reproductive Freedom for All

#### Labor unions

* California Federation of Labor
* California Teachers Association
* IBEW Locals 340 and 1245
* National Education Association
* SEIU Local 1021
* SEIU United Healthcare Workers West
* Service Employees International Union California

#### Newspapers

* The Sacramento Bee

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Kevin Kiley (R) | $2,450,576 | $484,923 | $2,004,626 |
| Jessica Morse (D) | $805,745 | $349,729 | $660,378 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Likely R | February 2, 2023 |
| Inside Elections | Likely R | March 10, 2023 |
| Sabato's Crystal Ball | Likely R | February 23, 2023 |
| Elections Daily | Likely R | March 22, 2024 |
| CNalysis | Lean R | November 16, 2023 |

### Results

California's 3rd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Kevin Kiley (incumbent) | 137,397 | 55.9 |
| | Democratic | Jessica Morse | 103,443 | 42.1 |
| | No party preference | Robert Smith | 5,007 | 2.0 |
| Total votes | Total votes | Total votes | 245,847 | 100.0 |
| General election |||||
| | Republican | Kevin Kiley (incumbent) | 234,246 | 55.5 |
| | Democratic | Jessica Morse | 188,067 | 44.5 |
| Total votes | Total votes | Total votes | 422,313 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 4

The incumbent was Democrat Mike Thompson, who had represented the district since 2013 and was re-elected with 67.8% of the vote in 2022.

### Candidates
#### Advanced to general

* John Munn (Republican), former Davis Joint Unified School District trustee and perennial candidate
* Mike Thompson (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Andrew Engdahl (Democratic), tech sales account executive and candidate for this district in 2022
* Niket Patwardhan (no party preference), software engineer

### Endorsements
#### Political parties

* Green Party of Sonoma County

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association

#### U.S. representatives

* Gabby Giffords, U.S. representative from Arizona's 8th congressional district (2007–2012)

#### Political parties

* California Democratic Party
* Yolo County Democratic Party

#### Organizations

* California Young Democrats
* Equality California
* Everytown for Gun Safety Action Fund
* Giffords
* Humane Society Legislative Fund
* J Street PAC
* League of Conservation Voters
* Planned Parenthood Action Fund (post-primary)
* Santa Rosa Chamber of Commerce
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Teachers Association
* 3 IBEW locals
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* North Bay Building Trades Council

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Andrew Engdahl (D) | $1,587 | $4,028 | $666 |
| Mike Thompson (D) | $1,215,934 | $1,608,631 | $1,235,136 |
| John Munn (R) | $59,561 | $52,560 | $7,000 |
| Niket Patwardhan (NPP) | $9,019 | $7,347 | $1,671 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 4th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Mike Thompson (incumbent) | 120,736 | 62.5 |
| | Republican | John Munn | 58,787 | 30.4 |
| | Democratic | Andrew Engdahl | 11,492 | 6.0 |
| | No party preference | Niket Patwardhan | 2,116 | 1.1 |
| Total votes | Total votes | Total votes | 193,131 | 100.0 |
| General election |||||
| | Democratic | Mike Thompson (incumbent) | 227,730 | 66.5 |
| | Republican | John Munn | 114,950 | 33.5 |
| Total votes | Total votes | Total votes | 342,680 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 5

The incumbent was Republican Tom McClintock, who had represented the district since 2009 and was re-elected with 61.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Mike Barkley (Democratic), attorney, perennial candidate, and runner-up for this district in 2022
* Tom McClintock (Republican), incumbent U.S. representative

#### Eliminated in primary

* Steve Wozniak (no party preference), freelance writer and candidate for this district in 2022 (no relation to Apple cofounder Steve Wozniak)

### Endorsements
#### Political parties

* California Democratic Party

#### Organizations

* California Young Democrats

#### Labor unions

* California Federation of Labor
* IBEW Local 684

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* American Independent Party
* California Republican Party

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* National Rifle Association Political Victory Fund

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Tom McClintock (R) | $633,193 | $638,946 | $131,787 |
| Mike Barkley (D) | $31,203 | $27,281 | $4,000 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | Solid R | March 10, 2023 |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | Safe R | February 5, 2024 |
| CNalysis | Solid R | November 16, 2023 |

### Results

California's 5th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Tom McClintock (incumbent) | 118,958 | 58.5 |
| | Democratic | Mike Barkley | 66,680 | 32.8 |
| | No party preference | Steve Wozniak | 17,636 | 8.7 |
| Total votes | Total votes | Total votes | 203,274 | 100.0 |
| General election |||||
| | Republican | Tom McClintock (incumbent) | 227,643 | 61.8 |
| | Democratic | Mike Barkley | 140,919 | 38.2 |
| Total votes | Total votes | Total votes | 368,562 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 6

The incumbent was Democrat Ami Bera, who had represented the district since 2013 and was re-elected with 55.9% of the vote in 2022.

### Candidates
#### Advanced to general

* Ami Bera (Democratic), incumbent U.S. representative
* Christine Bish (Republican), realtor, runner-up for this district in 2020 and candidate in 2022

#### Eliminated in primary

* Adam Barajas (Democratic), retail worker
* Craig DeLuz (Republican), Robla school board member
* Chris Richardson (Green), engineer and candidate for this district in 2018, 2020, and 2022
* Ray Riehle (Republican), businessman

#### Withdrawn

* Bret Daniels (Republican), vice mayor of Citrus Heights and candidate for this district in 2022 (ran for Sacramento County Board of Supervisors)

### Endorsements
#### Political parties

* California Democratic Party
* Sacramento County Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Humane Society Legislative Fund
* International Franchise Association
* J Street PAC
* Joint Action Committee for Political Affairs
* Planned Parenthood Action Fund
* Population Connection Action Fund

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 340 and 1245
* National Education Association

#### Newspapers

* The Sacramento Bee

#### Organizations

* California ProLife Council (co-endorsement with DeLuz)
* California Rifle and Pistol Association (co-endorsement with DeLuz)

#### Political parties

* American Independent Party

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council (co-endorsement with Bish)
* California Republican Assembly
* California Rifle and Pistol Association (co-endorsement with Bish)

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Ami Bera (D) | $661,944 | $611,725 | $1,785,351 |
| Christine Bish (R) | $83,838 | $81,862 | $2,004 |
| Craig DeLuz (R) | $30,580 | $29,008 | $1,572 |
| Ray Riehle (R) | $47,775 | $41,338 | $6,436 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 6th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Ami Bera (incumbent) | 76,605 | 51.8 |
| | Republican | Christine Bish | 29,628 | 20.1 |
| | Republican | Ray Riehle | 15,779 | 10.7 |
| | Republican | Craig DeLuz | 14,361 | 9.7 |
| | Democratic | Adam Barajas | 8,711 | 5.9 |
| | Green | Chris Richardson | 2,661 | 1.8 |
| Total votes | Total votes | Total votes | 147,745 | 100.0 |
| General election |||||
| | Democratic | Ami Bera (incumbent) | 165,408 | 57.6 |
| | Republican | Christine Bish | 121,664 | 42.4 |
| Total votes | Total votes | Total votes | 287,072 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 7

The incumbent was Democrat Doris Matsui, who had represented the district since 2013 and was re-elected with 68.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Doris Matsui (Democratic), incumbent U.S. representative
* Tom Silva (Republican), former Galt Joint Union Elementary School District trustee

#### Eliminated in primary

* David Mandel (Democratic), attorney

### Endorsements
#### Political parties

* California Democratic Party
* Sacramento County Democratic Party
* Yolo County Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* National Women's Political Caucus
* Planned Parenthood Action Fund (post-primary)
* Population Connection Action Fund

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 340 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers

#### Newspapers

* The Sacramento Bee

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association (post-primary)

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| David Mandel (D) | $72,240 | $49,283 | $13,517 |
| Doris Matsui (D) | $638,291 | $637,713 | $181,918 |
| Tom Silva (R) | $4,500 | $1,662 | $2,837 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 7th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Doris Matsui (incumbent) | 89,485 | 56.5 |
| | Republican | Tom Silva | 48,943 | 30.9 |
| | Democratic | David Mandel | 20,057 | 12.7 |
| Total votes | Total votes | Total votes | 158,485 | 100.0 |
| General election |||||
| | Democratic | Doris Matsui (incumbent) | 197,429 | 66.8 |
| | Republican | Tom Silva | 98,341 | 33.2 |
| Total votes | Total votes | Total votes | 295,770 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 8

The incumbent was Democrat John Garamendi, who had represented the district since 2013 and was re-elected with 75.7% of the vote in 2022.

### Candidate
#### Advanced to general

* John Garamendi (Democratic), incumbent U.S. representative
* Rudy Recile (Republican), consultant and runner-up for this district in 2022

### Endorsements
#### Political parties

* California Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Council for a Livable World
* East Bay Young Democrats
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* Planned Parenthood Action Fund (post-primary)

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* Contra Costa Building Trades Council
* 4 IBEW locals
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* Service Employees International Union California, Local 1021, and SEIU United Healthcare Workers West

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council

#### Political parties

* American Independent Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| John Garamendi (D) | $542,502 | $488,936 | $1,175,013 |
| Rudy Recile (R) | $10,852 | $10,496 | $850 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 8th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | John Garamendi (incumbent) | 100,193 | 77.0 |
| | Republican | Rudy Recile | 29,944 | 23.0 |
| Total votes | Total votes | Total votes | 130,137 | 100.0 |
| General election |||||
| | Democratic | John Garamendi (incumbent) | 201,962 | 74.0 |
| | Republican | Rudy Recile | 71,068 | 26.0 |
| Total votes | Total votes | Total votes | 273,030 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 9

The incumbent was Democrat Josh Harder, who had represented the district since 2019 and was re-elected with 54.9% of the vote in 2022.

### Candidates
#### Advanced to general

* Josh Harder (Democratic), incumbent U.S. representative
* Kevin Lincoln (Republican), mayor of Stockton (2021–present)

#### Eliminated in primary

* Khalid Jafri (Republican), retired engineer and Democratic candidate for this district in 2022
* John McBride (Republican), strength and conditioning coach

#### Withdrawn

* Brett Dood (Republican), pastor (endorsed Lincoln)

### Endorsements
#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* Bend the Arc
* California Environmental Voters
* California Young Democrats
* Council for a Livable World
* End Citizens United
* Equality California
* Everytown for Gun Safety Action Fund
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* Joint Action Committee for Political Affairs
* Planned Parenthood Action Fund
* Population Connection Action Fund
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* International Brotherhood of Teamsters Joint Council 7
* National Union of Healthcare Workers
* San Joaquin Building Trades Council
* SEIU Local 1021
* SEIU United Healthcare Workers West
* Service Employees International Union California
* United Auto Workers

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California Republican Assembly
* California Rifle and Pistol Association (post-primary)
* Congressional Leadership Fund (post-primary)
* National Republican Congressional Committee

#### Political parties

* California Republican Party

#### Organizations

* California ProLife Council
* California Rifle and Pistol Association (switched endorsement to Lincoln post-primary)

#### Political parties

* American Independent Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Josh Harder (D) | $2,402,615 | $767,804 | $2,784,412 |
| Kevin Lincoln (R) | $648,712 | $424,366 | $224,346 |
| John McBride (R) | $11,315 | $10,965 | $349 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Likely D | February 2, 2023 |
| Inside Elections | Likely D | June 20, 2024 |
| Sabato's Crystal Ball | Likely D | February 23, 2023 |
| Elections Daily | Lean D | March 22, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Josh Harder (D) | Kevin Lincoln (R) | Undecided |
| NMB Research (R) | February 18–20, 2024 | 400 (LV) | ± 2.0% | 40% | 44% | 16% |

### Results

California's 9th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Josh Harder (incumbent) | 60,978 | 49.7 |
| | Republican | Kevin Lincoln | 36,744 | 30.0 |
| | Republican | John McBride | 15,707 | 12.8 |
| | Republican | Khalid Jafri | 9,150 | 7.5 |
| Total votes | Total votes | Total votes | 122,579 | 100.0 |
| General election |||||
| | Democratic | Josh Harder (incumbent) | 130,183 | 51.8 |
| | Republican | Kevin Lincoln | 121,174 | 48.2 |
| Total votes | Total votes | Total votes | 251,357 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 10

The incumbent was Democrat Mark DeSaulnier, who had represented the district since 2015 and was re-elected with 78.9% of the vote in 2022.

### Candidates
#### Advanced to general

* Mark DeSaulnier (Democratic), incumbent U.S. representative
* Katherine Piccinini (Republican), property manager and write-in candidate for this district in 2022

#### Eliminated in primary

* Nolan Chen (Republican), systems engineer
* Mohamed Elsherbini (no party preference), travel agency owner
* Joe Sweeney (no party preference), businessman

### Endorsements
#### Political parties

* California Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Equality California
* Humane Society Legislative Fund
* J Street PAC
* Planned Parenthood Action Fund (post-primary)

#### Labor unions

* AFSCME California
* Alameda County Building Trades Council
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* Contra Costa Building Trades Council
* 3 IBEW locals
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* United Auto Workers

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California ProLife Council

#### Political parties

* American Independent Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Mark DeSaulnier (D) | $321,343 | $271,401 | $625,306 |
| Nolan Chen (R) | $5,760 | $3,274 | $2,485 |
| Katherine Piccinini (R) | $11,426 | $9,708 | $1,717 |
| Joe Sweeney (I) | $14,285 | $1,827 | $12,457 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 10th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Mark DeSaulnier (incumbent) | 121,334 | 65.5 |
| | Republican | Katherine Piccinini | 34,900 | 18.9 |
| | Republican | Nolan Chen | 19,465 | 10.5 |
| | No party preference | Joe Sweeney | 7,609 | 4.1 |
| | No party preference | Mohamed Elsherbini | 1,825 | 1.0 |
| Total votes | Total votes | Total votes | 185,133 | 100.0 |
| General election |||||
| | Democratic | Mark DeSaulnier (incumbent) | 242,325 | 66.5 |
| | Republican | Katherine Piccinini | 122,219 | 33.5 |
| Total votes | Total votes | Total votes | 364,544 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 11

The incumbent was Democrat Nancy Pelosi, who was re-elected with 84.0% of the vote in 2022. Later that year, Pelosi announced she would step down from House leadership. Pelosi announced that she would seek re-election in 2024.

### Candidates
#### Advanced to general

* Bruce Lou (Republican), business owner
* Nancy Pelosi (Democratic), incumbent U.S. representative and former Speaker of the House

#### Eliminated in primary

* Jason Boyce (Democratic), software engineer
* Eve Del Castello (Republican), business consultant and candidate for this district in 2022
* Marjorie Mikels (Democratic), attorney
* Larry Nichelson (Republican), retired teacher
* Bianca Von Krieg (Democratic), actress and candidate for this district in 2022
* Jason Zeng (Republican), data engineer

### Endorsements
#### Organizations

* Vote Common Good

#### Officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California Republican Assembly
* California Rifle and Pistol Association (post-primary)

#### Political parties

* American Independent Party
* California Republican Party

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Everytown for Gun Safety Action Fund
* Feminist Majority PAC
* Harvey Milk LGBTQ Democratic Club
* Humane Society Legislative Fund
* J Street PAC
* Joint Action Committee for Political Affairs
* League of Conservation Voters
* Natural Resources Defense Council
* Planned Parenthood Action Fund
* Population Connection Action Fund
* Pro-Israel America
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 6 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* SEIU Local 1021

#### Newspapers

* San Francisco Chronicle

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Marjorie Mikels (D) | $10,000 | $1,200 | $8,000 |
| Nancy Pelosi (D) | $5,027,157 | $5,005,162 | $3,615,723 |
| Bruce Lou (R) | $51,519 | $38,550 | $12,968 |
| Jason Zeng (R) | $39,286 | $5,863 | $33,422 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 11th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Nancy Pelosi (incumbent) | 138,285 | 73.3 |
| | Republican | Bruce Lou | 16,285 | 8.6 |
| | Democratic | Marjorie Mikels | 9,363 | 5.0 |
| | Democratic | Bianca Von Krieg | 7,634 | 4.0 |
| | Republican | Jason Zeng | 6,607 | 3.5 |
| | Democratic | Jason Boyce | 4,325 | 2.3 |
| | Republican | Larry Nichelson | 3,482 | 1.8 |
| | Republican | Eve Del Castello | 2,751 | 1.5 |
| Total votes | Total votes | Total votes | 188,732 | 100.0 |
| General election |||||
| | Democratic | Nancy Pelosi (incumbent) | 274,796 | 81.0 |
| | Republican | Bruce Lou | 64,315 | 19.0 |
| Total votes | Total votes | Total votes | 339,111 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 12

The incumbent was Democrat Barbara Lee, who was re-elected with 90.5% of the vote in 2022. She did not seek re-election, instead choosing to run for the U.S. Senate.

### Candidates
#### Advanced to general

* Lateefah Simon (Democratic), president of the Bay Area Rapid Transit Board of Directors and California State University trustee
* Jennifer Tran (Democratic), California State University East Bay professor and president of the Oakland Vietnamese Chamber of Commerce

#### Eliminated in primary

* Tony Daysog (Democratic), vice mayor of Alameda and candidate for the 10th district in 2014
* Glenn Kaplan (Democratic), bar owner and candidate for this district in 2022
* Ned Nuerge (Republican), retired driving instructor, LaRouchite, and candidate for this district in 2022
* Abdur Sikder (Democratic), San Francisco State University professor
* Stephen Slauson (Republican), electrical engineer and runner-up for this district in 2022
* Andre Todd (Democratic), financial executive and former National Football League player
* Eric Wilson (Democratic), nonprofit employee and candidate for this district in 2022

#### Withdrawn

* Tim Sanchez (Democratic), Boeing executive

#### Declined

* Nikki Fortunato Bas (Democratic), president of the Oakland City Council
* Mia Bonta (Democratic), state assemblywoman from the 18th district (2021–present) (endorsed Simon)
* Dan Kalb (Democratic), Oakland city councilor from the 1st district (2013–present) (ran for state senate)
* Barbara Lee (Democratic), incumbent U.S. representative (ran for U.S. Senate)
* Libby Schaaf (Democratic), former mayor of Oakland (2015–2023) (endorsed Simon)
* Buffy Wicks (Democratic), state assemblywoman from the 14th district (2019–present) (endorsed Simon)

### Endorsements
#### Political parties

* American Independent Party

#### U.S. representatives

* Robert Garcia, U.S. representative from CA-42 (2023–present)
* Kevin Mullin, U.S. representative from CA-15 (2023–present)

#### Statewide officials

* Rob Bonta, California Attorney General (2021–present)
* Gavin Newsom, governor of California (2019–present)

#### State legislators

* Mia Bonta, state assemblywoman from the 18th district (2021–present)
* Nancy Skinner, state senator from the 9th district (2016–present)
* Buffy Wicks, state assemblywoman from the 14th district (2019–present)

#### Local officials

* Libby Schaaf, former mayor of Oakland (2015–2023)

#### Political parties

* California Democratic Party

#### Organizations

* Black Women Organized for Political Action
* California Environmental Voters
* California Working Families Party
* California Young Democrats
* Center for Biological Diversity Action Fund
* Congressional Progressive Caucus PAC
* Courage California
* East Bay Stonewall Democratic Club
* East Bay Young Democrats
* Emgage PAC
* EMILY's List
* End Citizens United
* Feminist Majority PAC
* Friends of the Earth Action
* League of Conservation Voters
* Planned Parenthood Action Fund
* Reproductive Freedom for All
* Sierra Club

#### Labor unions

* Actors' Equity Association
* AFSCME California
* Alameda County Building and Construction Trades Council
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 595 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Nurses United
* National Union of Healthcare Workers
* SEIU Local 1021
* SEIU United Healthcare Workers West
* Service Employees International Union California
* United Auto Workers

#### Newspapers

* Bay Area Reporter
* East Bay Times
* The Mercury News
* San Francisco Chronicle

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### U.S. representatives

* Grace Meng, U.S. representative from NY-6 (2013–present)

#### Organizations

* ASPIRE PAC
* LPAC (rescinded)

#### U.S. representatives

* Lou Correa, U.S. representative from CA-46 (2017–present)
* Andrea Salinas, U.S. representative from OR-06 (2023–present)
* Linda Sánchez, U.S. representative from CA-38 (2003–present) (no relation)

#### Organizations

* CHC BOLD PAC
* VoteVets

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Tony Daysog (D) | $18,760 | $18,298 | $461 |
| Abdur Sikder (D) | $21,938 | $18,366 | $3,571 |
| Lateefah Simon (D) | $1,110,109 | $836,790 | $273,318 |
| Jennifer Tran (D) | $148,095 | $97,686 | $50,408 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Lateefah Simon (D) | Jennifer Tran (D) | Other | Undecided |
| USC/CSU | September 14–21, 2024 | 510 (LV) | ± 4.3% | 41% | 27% | 3% | 32% |

### Results

California's 12th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Lateefah Simon | 86,031 | 55.9 |
| | Democratic | Jennifer Tran | 22,999 | 14.9 |
| | Democratic | Tony Daysog | 17,222 | 11.2 |
| | Republican | Stephen Slauson | 9,710 | 6.3 |
| | Democratic | Glenn Kaplan | 6,799 | 4.4 |
| | Democratic | Eric Wilson | 4,252 | 2.8 |
| | Democratic | Abdur Sikder | 2,857 | 1.9 |
| | Republican | Ned Nuerge | 2,535 | 1.6 |
| | Democratic | Andre Todd | 1,632 | 1.1 |
| Total votes | Total votes | Total votes | 154,037 | 100.0 |
| General election |||||
| | Democratic | Lateefah Simon | 185,176 | 65.4 |
| | Democratic | Jennifer Tran | 97,849 | 34.6 |
| Total votes | Total votes | Total votes | 283,025 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 13

The incumbent was Republican John Duarte, who flipped the district and was elected with 50.2% of the vote in 2022. This was a rematch between the candidates from 2022 where Duarte previously defeated Gray by a slim margin. This was the closest House race in 2024 and one of the last to be called due to the close margin, California's state law allowing ballots to arrive a week after the election, and a high quantity of absentee votes which must be cured.
Ceres Courier erroneously declared Duarte the winner on November 13th claiming high confidence that the remaining vote total wouldn't allow Gray to overtake Duarte's lead of roughly 3,000 votes. Most networks declared Gray the winner in early December.
Republican Donald Trump carried the district by 5.4% in the concurrent presidential election.

### Candidates
#### Advanced to general

* John Duarte (Republican), incumbent U.S. representative
* Adam Gray (Democratic), former state assemblyman from the 21st district (2012–2022) and runner-up for this district in 2022

### Endorsements
#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* California Republican Party

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* Howard Jarvis Taxpayers Association PAC
* National Rifle Association Political Victory Fund
* Republican Jewish Coalition

#### U.S. representatives

* Jim Costa, U.S. representative from CA-21 (2005–present)
* Annie Kuster, U.S. representative for New Hampshire's 2nd congressional district
* Pat Ryan, U.S. representative for New York's 18th congressional district

#### Political parties

* California Democratic Party

#### Organizations

* Blue Dog PAC
* California Young Democrats
* DCCC Red to Blue
* Equality California
* Feminist Majority PAC
* Jewish Democratic Council of America
* NewDem Action Fund
* Planned Parenthood Action Fund
* Swing Left

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Teachers Association
* Fresno-Madera-Kings-Tulare Building Trades Council
* IBEW Locals 684 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| John Duarte (R) | $2,205,578 | $743,978 | $1,487,118 |
| Adam Gray (D) | $786,855 | $372,845 | $468,384 |
| Source: Federal Election Commission ||||

### Primary election
#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | John Duarte (R) | Phil Arballo (D) | Adam Gray (D) | Other/Undecided |
| RMG Research | November 14–19, 2023 | 300 (LV) | ± 5.7% | 21% | 2% | 21% | 55% |

### General election
#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Tossup | February 2, 2023 |
| Inside Elections | Tilt D (flip) | October 18, 2024 |
| Sabato's Crystal Ball | Lean D (flip) | November 4, 2024 |
| Elections Daily | Lean D (flip) | November 4, 2024 |
| CNalysis | Tilt D (flip) | November 4, 2024 |

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | John Duarte (R) | Adam Gray (D) | Undecided |
| USC/CSU | September 14–21, 2024 | 311 (LV) | ± 5.6% | 45% | 46% | 9% |

### Results

California's 13th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | John Duarte (incumbent) | 47,219 | 54.9 |
| | Democratic | Adam Gray | 38,754 | 45.1 |
| Total votes | Total votes | Total votes | 85,973 | 100.0 |
| General election |||||
| | Democratic | Adam Gray | 105,554 | 50.04 |
| | Republican | John Duarte (incumbent) | 105,367 | 49.96 |
| Total votes | Total votes | Total votes | 210,921 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 14

The incumbent was Democrat Eric Swalwell, who had represented the district since 2013 and was re-elected with 69.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Vin Kruttiventi (Republican), engineer
* Eric Swalwell (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Alison Hayden (Republican), teacher and runner-up for this district in 2020 and 2022
* Luis Reynoso (Republican), Chabot–Las Positas Community College District trustee

### Endorsements
#### Political parties

* American Independent Party

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* Howard Jarvis Taxpayers Association PAC

#### Political parties

* California Republican Party

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Equality California
* Humane Society Legislative Fund
* J Street PAC
* Joint Action Committee for Political Affairs
* Planned Parenthood Action Fund (post-primary)

#### Labor unions

* AFSCME California
* Alameda County Building Trades Council
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 595 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Eric Swalwell (D) | $2,658,863 | $2,563,768 | $723,694 |
| Vin Kruttiventi (R) | $668,973 | $399,455 | $269,518 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 14th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Eric Swalwell (incumbent) | 84,075 | 66.7 |
| | Republican | Vin Kruttiventi | 22,134 | 17.6 |
| | Republican | Alison Hayden | 11,948 | 9.5 |
| | Republican | Luis Reynoso | 7,812 | 6.2 |
| Total votes | Total votes | Total votes | 125,969 | 100.0 |
| General election |||||
| | Democratic | Eric Swalwell (incumbent) | 187,263 | 67.8 |
| | Republican | Vin Kruttiventi | 89,125 | 32.2 |
| Total votes | Total votes | Total votes | 276,388 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 15

The incumbent was Democrat Kevin Mullin, who had represented the district since 2023. He was elected with 55.5% of the vote in 2022, running against another Democrat.

### Candidates
#### Advanced to general

* Anna Cheng Kramer (Republican), housing policy advisor
* Kevin Mullin (Democratic), incumbent U.S. representative

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly
* California Rifle and Pistol Association

#### Political parties

* American Independent Party
* California Republican Party

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* Democratic Majority for Israel
* Equality California
* Harvey Milk LGBTQ Democratic Club
* Humane Society Legislative Fund
* Jewish Democratic Council of America (post-primary)
* League of Conservation Voters
* Planned Parenthood Action Fund (post-primary)
* Sierra Club

#### Labor unions

* AFSCME California
* Association of Flight Attendants
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 617 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Nurses United
* National Union of Healthcare Workers
* SEIU Local 1021
* SEIU United Healthcare Workers West

#### Newspapers

* San Francisco Bay View

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Kevin Mullin (D) | $454,937 | $440,677 | $36,794 |
| Anna Kramer (R) | $39,080 | $12,651 | $26,429 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 15th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Kevin Mullin (incumbent) | 109,172 | 75.3 |
| | Republican | Anna Cheng Kramer | 35,868 | 24.7 |
| Total votes | Total votes | Total votes | 145,040 | 100.0 |
| General election |||||
| | Democratic | Kevin Mullin (incumbent) | 211,648 | 73.1 |
| | Republican | Anna Cheng Kramer | 77,896 | 26.9 |
| Total votes | Total votes | Total votes | 289,544 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 16

The incumbent was Democrat Anna Eshoo, who was re-elected with 57.8% of the vote in 2022, running against another Democrat. She did not seek re-election. Former San Jose mayor Sam Liccardo advanced to the general election a week after the primary. His challenger was state assemblyman Evan Low.
By April 3, Low and Santa Clara County supervisor Joe Simitian were tied with 30,249 votes each, and were expected to advance to the general election under a stipulation by California elections code regarding a second-place tie in primary elections. However, a recount was requested by two voters shortly thereafter. The recount request was controversial, with Low's campaign accusing Liccardo of being behind it. At the conclusion of the recount on May 1, Low ultimately edged out Simitian by a margin of 5 votes, with Low gaining 12 votes and Simitian 7.

### Candidates
#### Advanced to general

* Sam Liccardo (Democratic), former mayor of San Jose (2015–2023)
* Evan Low (Democratic), state assemblyman from the 26th district (2014–present)

#### Initially advanced to general but eliminated after recount

* Joe Simitian (Democratic), Santa Clara County supervisor from the 5th district (1996–2000, 2013–present) and former state senator from the 11th district (2004–2012)

#### Eliminated in primary

* Joby Bernstein (Democratic), financial advisor and graduate student
* Peter Dixon (Democratic), cybersecurity executive and former U.S. State Department staffer
* Rishi Kumar (Democratic), former Saratoga city councilor and runner-up for this district in 2020 and 2022
* Julie Lythcott-Haims (Democratic), Palo Alto city councilor
* Ahmed Mostafa (Democratic), attorney
* Peter Ohtaki (Republican), former mayor of Menlo Park and candidate for this district in 2022
* Karl Ryan (Republican), businessman
* Greg Tanaka (Democratic), Palo Alto city councilor and candidate for this district in 2022

#### Declined

* Josh Becker (Democratic), state senator from the 13th district (2020–present)
* Marc Berman (Democratic), state assemblyman from the 23rd district (2016–present)
* Anna Eshoo (Democratic), incumbent U.S. representative (endorsed Simitian)

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 16th congressional district, 2024 (results certified on April 4, 2024) :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Sam Liccardo | 38,489 | 21.1 |
| | Democratic | Evan Low | 30,249 | 16.6 |
| | Democratic | Joe Simitian | 30,249 | 16.6 |
| | Republican | Peter Ohtaki | 23,275 | 12.8 |
| | Democratic | Peter Dixon | 14,673 | 8.1 |
| | Democratic | Rishi Kumar | 12,377 | 6.8 |
| | Republican | Karl Ryan | 11,557 | 6.3 |
| | Democratic | Julie Lythcott-Haims | 11,383 | 6.2 |
| | Democratic | Ahmed Mostafa | 5,811 | 3.2 |
| | Democratic | Greg Tanaka | 2,421 | 1.3 |
| | Democratic | Joby Bernstein | 1,651 | 0.9 |
| Total votes | Total votes | Total votes | 182,135 | 100.0 |
2024 California's 16th congressional district primary (final recount results on May 1, 2024) :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Sam Liccardo | 38,492 | 21.1 | −0.005 |
| | Democratic | Evan Low | 30,261 | 16.6 | +0.002 |
| | Democratic | Joe Simitian | 30,256 | 16.6 | −0.001 |
| | Republican | Peter Ohtaki | 23,283 | 12.8 | +0.001 |
| | Democratic | Peter Dixon | 14,677 | 8.1 | −0.000 |
| | Democratic | Rishi Kumar | 12,383 | 6.8 | +0.001 |
| | Republican | Karl Ryan | 11,563 | 6.3 | +0.001 |
| | Democratic | Julie Lythcott-Haims | 11,386 | 6.2 | −0.000 |
| | Democratic | Ahmed Mostafa | 5,814 | 3.2 | +0.001 |
| | Democratic | Greg Tanaka | 2,421 | 1.3 | −0.000 |
| | Democratic | Joby Bernstein | 1,652 | 0.9 | +0.000 |
| Total votes | Total votes | Total votes | 182,188 | 100.0 | |
| General election |||||
| | Democratic | Sam Liccardo | 179,583 | 58.2 | N/A |
| | Democratic | Evan Low | 128,893 | 41.8 | N/A |
| Total votes | Total votes | Total votes | 308,476 | 100.0 | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 17

The incumbent was Democrat Ro Khanna, who was re-elected with 70.9% of the vote in 2022. Khanna had expressed interest in running for U.S. Senate, but instead chose not to run and endorsed Barbara Lee.

### Candidates
#### Advanced to general

* Anita Chen (Republican), teacher
* Ro Khanna (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Joe Dehn (Libertarian), chair of the Santa Clara County Libertarian Party, former secretary of the Libertarian National Committee, and candidate for this district in 2020 and 2022
* Mario Ramirez (Democratic), photographer
* Ritesh Tandon (Democratic), software engineer and Republican runner-up for this district in 2020 and 2022

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly

#### Political parties

* American Independent Party
* California Republican Party

#### Political parties

* California Libertarian Party

#### Political parties

* California Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Equality California
* Friends of the Earth Action
* Humane Society Legislative Fund
* J Street PAC
* Justice Democrats
* Planned Parenthood Action Fund (post-primary)
* Sierra Club

#### Labor unions

* AFSCME California
* Alameda County Building Trades Council
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 595 and 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* South Bay Labor Council
* United Farm Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Ro Khanna (D) | $6,592,854 | $2,367,495 | $9,513,880 |
| Ritesh Tandon (D) | $20,147 | $8,224 | $12,233 |
| Anita Chen (R) | $15,639 | $7,431 | $8,208 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 17th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Ro Khanna (incumbent) | 74,004 | 62.9 |
| | Republican | Anita Chen | 31,568 | 26.8 |
| | Democratic | Ritesh Tandon | 5,738 | 4.9 |
| | Democratic | Mario Ramirez | 4,498 | 3.8 |
| | Libertarian | Joe Dehn | 1,839 | 1.6 |
| Total votes | Total votes | Total votes | 117,647 | 100.0 |
| General election |||||
| | Democratic | Ro Khanna (incumbent) | 172,462 | 67.7 |
| | Republican | Anita Chen | 82,415 | 32.3 |
| Total votes | Total votes | Total votes | 254,877 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 18

The incumbent was Democrat Zoe Lofgren, who was re-elected with 65.8% of the vote in 2022.

### Candidates
#### Advanced to general

* Peter Hernandez (Republican), former chair of the San Benito County Board of Supervisors and runner-up for this district in 2022
* Zoe Lofgren (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Luele Kifle (Democratic), IT consultant
* Lawrence Milan (Democratic), bartender
* Charlene Nijmeh (Democratic), chair of the Muwekma Ohlone Tribe

#### Declined

* Sam Liccardo (Democratic), former mayor of San Jose (running in the 16th district)

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* American Independent Party
* California Republican Party

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly

#### Organizations

* Vote Common Good

#### U.S. representatives

* Hakeem Jeffries, New York's 8th congressional district and House Minority Leader (2023–present)
* Nancy Pelosi, California's 11th congressional district (1987–present) and former Speaker of the House (2007–2011, 2019–2023)

#### Political parties

* California Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* Planned Parenthood Action Fund (post-primary)
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 1245
* International Brotherhood of Teamsters Joint Council 7
* National Union of Healthcare Workers
* Santa Clara/ San Benito/ Monterey Building Trades Council
* SEIU Local 1021
* SEIU United Healthcare Workers West
* South Bay Labor Council
* United Farm Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Zoe Lofgren (D) | $1,380,968 | $1,419,890 | $372,448 |
| Charlene Nijmeh (D) | $187,518 | $140,803 | $46,714 |
| Peter Hernandez (R) | $93,247 | $88,484 | $7,062 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 18th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Zoe Lofgren (incumbent) | 49,370 | 51.2 |
| | Republican | Peter Hernandez | 31,665 | 32.8 |
| | Democratic | Charlene Nijmeh | 10,631 | 11.0 |
| | Democratic | Lawrence Milan | 2,714 | 2.8 |
| | Democratic | Luele Kifle | 2,034 | 2.1 |
| Total votes | Total votes | Total votes | 96,414 | 100.0 |
| General election |||||
| | Democratic | Zoe Lofgren (incumbent) | 147,674 | 64.6 |
| | Republican | Peter Hernandez | 80,832 | 35.4 |
| Total votes | Total votes | Total votes | 228,506 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 19

The incumbent was Democrat Jimmy Panetta, who had represented the district since 2017 and was re-elected with 68.8% of the vote in 2022.

### Candidates
#### Advanced to general

* Jason Anderson (Republican), auto repair shop owner
* Jimmy Panetta (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Sean Dougherty (Green), engineer

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association

#### Political parties

* American Independent Party

#### Political parties

* Peace and Freedom Party
* Santa Clara County Green Party

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Humane Society Legislative Fund
* Planned Parenthood Action Fund (post-primary)
* Pro-Israel America
* Sierra Club
* With Honor Fund

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* Santa Clara/ San Benito/ Monterey Building Trades Council
* SEIU United Healthcare Workers West
* South Bay Labor Council

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Jimmy Panetta (D) | $1,776,745 | $752,004 | $3,205,151 |
| Jason Anderson (R) | $13,024 | $1,276 | $11,748 |
| Sean Dougherty (G) | $6,506 | $3,716 | $2,789 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 19th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Jimmy Panetta (incumbent) | 132,711 | 65.0 |
| | Republican | Jason Anderson | 58,285 | 28.6 |
| | Green | Sean Dougherty | 13,080 | 6.4 |
| Total votes | Total votes | Total votes | 204,076 | 100.0 |
| General election |||||
| | Democratic | Jimmy Panetta (incumbent) | 252,458 | 69.3 |
| | Republican | Jason Anderson | 111,862 | 30.7 |
| Total votes | Total votes | Total votes | 364,320 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 20

The incumbent was Republican Kevin McCarthy, who was re-elected with 67.2% of the vote in 2022. McCarthy resigned on December 31, 2023, after his removal as Speaker of the House. A special election was held in May 2024 to fill McCarthy's vacant seat, which was won by Vince Fong, a state assemblyman who had formerly served as McCarthy's district director.

### Candidates
#### Advanced to general

* Mike Boudreaux (Republican), Tulare County sheriff and runner-up in the May 2024 special election for this district (withdrew July 2024, endorsed Fong)
* Vince Fong (Republican), incumbent U.S. representative

#### Eliminated in primary

* James Cardoza (no party preference), realtor (write-in)
* Ben Dewell (no party preference), meteorologist and Democratic candidate for this district in 2022
* Stan Ellis (Republican), farmer
* Kyle Kirkland (Republican), casino owner and chairman of the board for Fresno Chaffee Zoo
* Kelly Kulikoff (Republican), mayor of California City
* Andy Morales (Democratic), security officer
* Matt Stoll (Republican), landscaping business owner and candidate for the 21st district in 2022
* Marisa Wood (Democratic), teacher and runner-up for this district in 2022

#### Withdrawn

* John Burrows (Democratic), spokesman for Fresno city councilor Nelson Esparza (endorsed Wood)
* TJ Esposito (no party preference), businessman (remained on ballot)
* David Giglio (Republican), businessman and candidate for the 13th district in 2022 (endorsed Boudreaux, remained on ballot)
* Kevin McCarthy, former U.S. Representative and former Speaker of the House (endorsed Fong)

#### Declined

* Garry Bredefeld (Republican), Fresno city councilor (ran for the Fresno County Board of Supervisors)
* Tal Eslick (Republican), political consultant and former chief of staff for U.S. Representative David Valadao
* Shannon Grove (Republican), state senator for the 12th district (2018–present) and former senate minority leader (2019–2021)
* Devon Mathis (Republican), state assemblyman for the 33rd district (2014–present)
* Jim Patterson (Republican), state assemblyman for the 32nd district (2016–present), former mayor of Fresno (1993–2001), and candidate for this district in 2002 and the 9th district in 2010
* Cole Rajewski (Republican), political consultant and former chief of staff for U.S. Representative David Valadao
* Pete Vander Poel (Republican), Tulare County supervisor (ran for re-election)

### Endorsements
#### U.S. executive branch officials

* Richard Grenell, acting Director of National Intelligence (2020), U.S. Ambassador to Germany (2018–2020)

#### U.S. representatives

* Connie Conway, former U.S. representative from California's 22nd congressional district (2022–2023)

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### State legislators

* Shannon Grove (Republican), state senator for the 12th district (2018–present) and former senate minority leader (2019–2021)
* Devon Mathis, state assemblyman for the 33rd district (2014–present)
* Andy Vidak, former state senator for the 14th district (2013–2018)

#### Individuals

* Kash Patel, former Trump aide

#### Organizations

* California ProLife Council
* California Republican Assembly
* California Rifle and Pistol Association (co-endorsement with Fong)

#### Labor unions

* International Brotherhood of Teamsters Joint Council 7

#### Newspapers

* The Fresno Bee

#### Executive branch officials

* Donald Trump, former president of the United States

#### U.S. representatives

* Ken Calvert, U.S. representative from California's 41st congressional district (1993–present)
* John Duarte, U.S. representative from California's 13th congressional district (2023–present)
* Darrell Issa, U.S. representative from California's 48th congressional district (2001–2019, 2021–present)
* Mike Johnson, U.S. representative from Louisiana's 4th congressional district (2017–present) and Speaker of the House (2023–present)
* Young Kim, U.S. representative from California's 40th congressional district (2021–present)
* Doug LaMalfa, U.S. representative from California's 1st congressional district (2015–present)
* Kevin McCarthy, U.S. representative from California's 20th congressional district (2007–2023)
* Jay Obernolte, U.S. representative from California's 8th congressional district (2021–present)
* Michelle Steel, U.S. representative from California's 45th congressional district (2021–present)

#### Local officials

* Karen Goh, mayor of Bakersfield (2017–present)

#### Organizations

* California Rifle and Pistol Association (co-endorsement with Boudreaux)
* Howard Jarvis Taxpayers Association
* National Rifle Association Political Victory Fund
* Susan B. Anthony List

#### Labor unions

* National Border Patrol Council

#### Individuals

* John Burrows, spokesman for Fresno city councilor Nelson Esparza and former candidate for this seat

#### Political parties

* California Democratic Party

#### Federal officials

* Michael Flynn, former National Security Advisor (2017), former Director of the Defense Intelligence Agency (2012–2014)

#### Organizations

* Republicans for National Renewal

#### Individuals

* Roger Stone, conservative political consultant and lobbyist

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Mike Boudreaux (R) | $280,633 | $155,635 | $124,997 |
| Vince Fong (R) | $768,246 | $613,008 | $155,237 |
| Kyle Kirkland (R) | $289,791 | $274,809 | $14,981 |
| Matt Stoll (R) | $20,100 | $3,457 | $16,642 |
| Andy Morales (D) | $142,062 | $140,139 | $1,923 |
| Marisa Wood (D) | $71,955 | $36,844 | $39,608 |
| Ben Dewell (NPP) | $1,785 | $1,742 | $605 |
| Source: Federal Election Commission ||||

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Mike Boudreaux (R) | Vince Fong (R) | Kyle Kirkland (R) | Andy Morales (D) | Marisa Wood (D) | Other | Undecided |
| Emerson College | January 26–29, 2024 | 565 (LV) | ± 4.1% | 11% | 27% | 4% | 8% | 11% | 5% | 35% |

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | Solid R | March 10, 2023 |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | Safe R | February 5, 2024 |
| CNalysis | Solid R | November 16, 2023 |

### Results

California's 20th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Vince Fong (incumbent) | 66,160 | 41.9 |
| | Republican | Mike Boudreaux | 37,883 | 24.0 |
| | Democratic | Marisa Wood | 33,509 | 21.2 |
| | Republican | Kyle Kirkland | 6,429 | 4.1 |
| | Democratic | Andy Morales | 4,381 | 2.8 |
| | Republican | Stan Ellis | 3,252 | 2.1 |
| | Republican | David Giglio (withdrawn) | 2,224 | 1.4 |
| | No party preference | Ben Dewell | 1,509 | 1.0 |
| | Republican | Matt Stoll | 1,131 | 0.7 |
| | Republican | Kelly Kulikoff | 724 | 0.5 |
| | No party preference | TJ Esposito (withdrawn) | 541 | 0.3 |
| | No party preference | James Cardoza (write-in) | 9 | 0.0 |
| Total votes | Total votes | Total votes | 157,752 | 100.0 |
| General election |||||
| | Republican | Vince Fong (incumbent) | 187,862 | 65.1 |
| | Republican | Mike Boudreaux (withdrawn) | 100,926 | 34.9 |
| Total votes | Total votes | Total votes | 288,788 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 21

The incumbent was Democrat Jim Costa, who had represented the district since 2005 and was re-elected with 54.0% of the vote in 2022.

### Candidates
#### Advanced to general

* Jim Costa (Democratic), incumbent U.S. representative
* Michael Maher (Republican), aviation business owner and runner-up for this district in 2022

### Endorsements
#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* International Franchise Association
* Planned Parenthood Action Fund (post-primary)
* Pro-Israel America

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* Fresno-Madera-Kings-Tulare Building Trades Council
* IBEW Local 1245
* National Education Association
* National Union of Healthcare Workers

#### Newspapers

* The Fresno Bee

#### U.S. representatives

* Connie Conway, former U.S. representative from CA-22 (2022–2023)
* John Duarte, U.S. representative from CA-13 (2023–present)
* Tom McClintock, U.S. representative from CA-05 (2005–present)
* George Radanovich, former U.S. representative from CA-19 (1995–2011)

#### State legislators

* Vince Fong, state assemblymember from the 32nd district (2016–present) and candidate for CA-20
* Shannon Grove, state senator from the 12th district (2018–present)
* Devon Mathis, state assemblymember from the 33rd district (2014–present)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly

#### Political parties

* California Republican Party
* Fresno County Republican Party
* Tulare County Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Jim Costa (D) | $917,344 | $478,139 | $828,283 |
| Michael Maher (R) | $307,141 | $208,992 | $100,372 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Likely D | March 22, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 21st congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Jim Costa (incumbent) | 42,697 | 53.0 |
| | Republican | Michael Maher | 37,935 | 47.0 |
| Total votes | Total votes | Total votes | 80,632 | 100.0 |
| General election |||||
| | Democratic | Jim Costa (incumbent) | 102,798 | 52.6 |
| | Republican | Michael Maher | 92,733 | 47.4 |
| Total votes | Total votes | Total votes | 195,531 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 22

The incumbent was Republican David Valadao, who was re-elected with 51.6% of the vote in 2022.

### Candidates
#### Advanced to general

* Rudy Salas (Democratic), former state assemblyman from the 32nd district (2012–2022) and runner-up for this district in 2022
* David Valadao (Republican), incumbent U.S. representative

#### Eliminated in primary

* Melissa Hurtado (Democratic), state senator from the 16th district (2018–present)
* Chris Mathys (Republican), former Fresno city councilor (1997–2001) and candidate for this district in 2022

### Endorsements
#### Statewide officials

* Eleni Kounalakis, lieutenant governor of California (2019–present) (co-endorsement with Salas)

#### State legislators

* Jasmeet Bains, state assemblymember from the 35th district (2022–present)

#### Organizations

* California Republican Assembly

#### Political parties

* American Independent Party

#### U.S. senators

* Alex Padilla, U.S. senator from California (2021–present)

#### U.S. representatives

* Pete Aguilar, CA-33 (2015–present)
* Zoe Lofgren, CA-18 (1995–present)
* Nancy Pelosi, former Speaker of the House (2007–2011, 2019–2023) from CA-11 (1987–present)

#### Statewide officials

* Rob Bonta, Attorney General of California (2021–present)
* Malia Cohen, California State Controller (2023–present)
* Eleni Kounalakis, lieutenant governor of California (2019–present) (co-endorsement with Hurtado)
* Gavin Newsom, governor of California (2019–present)

#### Individuals

* Dolores Huerta, labor leader and civil rights activist

#### Political parties

* California Democratic Party

#### Organizations

* Blue Dog PAC
* California Rifle and Pistol Association (co-endorsement with Valadao)
* California Young Democrats
* Congressional Hispanic Caucus BOLD PAC
* DCCC Red to Blue
* Democratic Majority for Israel (post-primary)
* Equality California
* Feminist Majority PAC
* Jewish Democratic Council of America
* Latino Victory Fund
* NewDem Action Fund
* Planned Parenthood Action Fund (post-primary)
* Reproductive Freedom for All
* Vote Common Good

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Teachers Association
* IBEW Local 1245
* International Brotherhood of Teamsters Joint Council 7
* National Education Association
* National Union of Healthcare Workers
* SEIU California and United Healthcare Workers West
* United Farm Workers

#### Newspapers

* The Fresno Bee

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* California Republican Party

#### Organizations

* AIPAC
* BIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association (co-endorsement with Salas)
* ClearPath Action Fund
* National Rifle Association Political Victory Fund
* Pro-Israel America
* Republican Jewish Coalition

### Fundraising

Campaign finance reports as of June 30, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Chris Mathys (R) | $337,867 | $337,142 | $1,225 |
| David Valadao (R) | $3,431,218 | $1,479,413 | $2,000,244 |
| Melissa Hurtado (D) | $84,532 | $84,162 | $369 |
| Rudy Salas (D) | $3,123,937 | $1,396,838 | $1,741,507 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Tossup | November 16, 2023 |
| Inside Elections | Tossup | October 31, 2024 |
| Sabato's Crystal Ball | Lean R | November 4, 2024 |
| Elections Daily | Lean R | November 4, 2024 |
| CNalysis | Tilt D (flip) | November 4, 2024 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | David Valadao (R) | Rudy Salas (D) | Undecided |
| Emerson College | October 22–26, 2024 | 525 (LV) | ± 4.2% | 45% | 47% | 8% |
| Emerson College | September 23–26, 2024 | 350 (LV) | ± 5.2% | 45% | 45% | 10% |
| USC/CSU | September 14–21, 2024 | 263 (LV) | ± 6.1% | 44% | 47% | 9% |
| Normington, Petts & Associates (D) | August 25–27, 2024 | 400 (LV) | – | 44% | 46% | 10% |
| Change Research (D) | August 10–17, 2024 | 479 (LV) | ± 2.2% | 44% | 38% | 18% |

### Results

California's 22nd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | David Valadao (incumbent) | 20,479 | 32.7 |
| | Democratic | Rudy Salas | 19,592 | 31.3 |
| | Republican | Chris Mathys | 13,745 | 22.0 |
| | Democratic | Melissa Hurtado | 8,733 | 14.0 |
| Total votes | Total votes | Total votes | 62,549 | 100.0 |
| General election |||||
| | Republican | David Valadao (incumbent) | 89,484 | 53.4 |
| | Democratic | Rudy Salas | 78,023 | 46.6 |
| Total votes | Total votes | Total votes | 167,507 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 23

The incumbent was Republican Jay Obernolte, who had represented the district since 2021 and was re-elected with 61.0% of the vote in 2022.

### Candidates
#### Advanced to general

* Derek Marshall (Democratic), community activist and runner-up for this district in 2022
* Jay Obernolte (Republican), incumbent U.S. representative

### Endorsements
#### Political parties

* California Democratic Party
* Los Angeles Democratic Party
* Working Families Party

#### Organizations

* Americans for Democratic Action Southern California
* California Young Democrats
* Center for Biological Diversity Action Fund
* Desert Stonewall Democrats
* Equality California
* Stonewall Democratic Club

#### Labor unions

* California Federation of Labor
* California Federation of Teachers
* California Teachers Association
* IBEW Local 440
* National Education Association
* National Union of Healthcare Workers
* United Auto Workers

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* National Rifle Association Political Victory Fund

#### Labor unions

* California Professional Firefighters
* IBEW Local 1245

#### Newspapers

* Inland Valley Daily Bulletin
* The Press-Enterprise
* Redlands Daily Facts
* The San Bernardino Sun

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Jay Obernolte (R) | $791,628 | $283,636 | $878,145 |
| Derek Marshall (D) | $336,761 | $266,088 | $84,924 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | Solid R | March 10, 2023 |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | Safe R | February 5, 2024 |
| CNalysis | Solid R | November 16, 2023 |

### Results

California's 23rd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Jay Obernolte (incumbent) | 70,208 | 63.4 |
| | Democratic | Derek Marshall | 40,477 | 36.6 |
| Total votes | Total votes | Total votes | 110,685 | 100.0 |
| General election |||||
| | Republican | Jay Obernolte (incumbent) | 159,286 | 60.1 |
| | Democratic | Derek Marshall | 105,563 | 39.9 |
| Total votes | Total votes | Total votes | 264,849 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 24

The incumbent was Democrat Salud Carbajal, who had represented the district since 2017 and was re-elected with 60.7% of the vote in 2022.

### Candidates
#### Advanced to general

* Salud Carbajal (Democratic), incumbent U.S. representative
* Thomas Cole (Republican), campaign data analyst

#### Eliminated in primary

* Helena Pasquarella (Democratic), teacher

### Endorsements
#### U.S. representatives

* Gabby Giffords, U.S. representative from Arizona's 8th congressional district (2007–2012)

#### Political parties

* California Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Equality California
* Everytown for Gun Safety Action Fund
* Giffords
* Humane Society Legislative Fund
* J Street PAC
* League of Conservation Voters
* Planned Parenthood Action Fund
* Sierra Club
* With Honor Fund

#### Labor unions

* AFSCME California
* Association of Flight Attendants (post-primary)
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 413 and 1245
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* United Farm Workers

#### Newspapers

* Santa Barbara Independent

#### Political parties

* American Independent Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Salud Carbajal (D) | $1,258,354 | $672,803 | $2,689,537 |
| Thomas Cole (R) | $10,370 | $8,920 | $14,500 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 24th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Salud Carbajal (incumbent) | 102,516 | 53.7 |
| | Republican | Thomas Cole | 71,089 | 37.2 |
| | Democratic | Helena Pasquarella | 17,293 | 9.1 |
| Total votes | Total votes | Total votes | 190,898 | 100.0 |
| General election |||||
| | Democratic | Salud Carbajal (incumbent) | 214,724 | 62.7 |
| | Republican | Thomas Cole | 127,755 | 37.3 |
| Total votes | Total votes | Total votes | 342,479 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 25

The incumbent was Democrat Raul Ruiz, who had represented the district since 2013 and was re-elected with 57.4% of the vote in 2022.

### Candidates
#### Advanced to general

* Raul Ruiz (Democratic), incumbent U.S. representative
* Ian Weeks (Republican), financial planner

#### Eliminated in primary

* Ryan Dean Burkett (no party preference), retail worker
* Miguel Chapa (Republican), mortgage broker
* Oscar Ortiz (Democratic), Indio city councilor
* Ceci Truman (Republican), businesswoman and candidate for this district in 2022

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California Rifle and Pistol Association (co-endorsement with Truman)

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Desert Stonewall Democrats
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* Joint Action Committee for Political Affairs
* League of Conservation Voters
* Planned Parenthood Action Fund (post-primary)

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 1245
* National Education Association
* National Union of Healthcare Workers
* San Diego & Imperial Counties AFL-CIO
* United Auto Workers

#### Organizations

* California Rifle and Pistol Association (co-endorsement with Chapa)

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Oscar Ortiz (D) | $32,022 | $22,101 | $10,140 |
| Raul Ruiz (D) | $1,293,842 | $887,745 | $1,992,893 |
| Miguel Chapa (R) | $9,370 | $3,095 | $1,909 |
| Ceci Truman (R) | $112,573 | $84,004 | $28,569 |
| Ian Weeks (R) | $75,140 | $59,370 | $15,770 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 25th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Raul Ruiz (incumbent) | 45,882 | 45.1 |
| | Republican | Ian Weeks | 20,992 | 20.6 |
| | Republican | Ceci Truman | 17,815 | 17.5 |
| | Democratic | Oscar Ortiz | 10,171 | 10.0 |
| | Republican | Miguel Chapa | 5,856 | 5.7 |
| | No party preference | Ryan Dean Burkett | 1,129 | 1.1 |
| Total votes | Total votes | Total votes | 101,845 | 100.0 |
| General election |||||
| | Democratic | Raul Ruiz (incumbent) | 137,837 | 56.3 |
| | Republican | Ian Weeks | 107,194 | 43.7 |
| Total votes | Total votes | Total votes | 245,031 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 26

The incumbent was Democrat Julia Brownley, who had represented the district since 2013 and was re-elected with 54.5% of the vote in 2022.

### Candidates
#### Advanced to general

* Julia Brownley (Democratic), incumbent U.S. representative
* Michael Koslow (Republican), healthcare investigator and retired Department of Defense special agent

#### Eliminated in primary

* Chris Anstead (Democratic), Agoura Hills city councilor
* Bruce Boyer (Republican), businessman, dancer, and perennial candidate

### Endorsements
#### Organizations

* California Rifle and Pistol Association (switched endorsement to Koslow post-primary)

#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* Joint Action Committee for Political Affairs
* League of Conservation Voters
* National Women's Political Caucus
* Planned Parenthood Action Fund

#### Labor unions

* AFSCME California
* Association of Flight Attendants
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Locals 11 and 1245
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* United Farm Workers

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly
* California Rifle and Pistol Association (post-primary)
* Howard Jarvis Taxpayers Association PAC

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Chris Anstead (D) | $41,697 | $17,704 | $23,993 |
| Julia Brownley (D) | $879,078 | $465,567 | $762,703 |
| Michael Koslow (R) | $39,066 | $34,563 | $4,503 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 26th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Julia Brownley (incumbent) | 84,997 | 51.4 |
| | Republican | Michael Koslow | 55,908 | 33.8 |
| | Republican | Bruce Boyer | 17,707 | 10.7 |
| | Democratic | Chris Anstead | 6,841 | 4.1 |
| Total votes | Total votes | Total votes | 165,453 | 100.0 |
| General election |||||
| | Democratic | Julia Brownley (incumbent) | 187,393 | 56.1 |
| | Republican | Michael Koslow | 146,913 | 43.9 |
| Total votes | Total votes | Total votes | 334,306 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 27

The incumbent was Republican Mike Garcia, who was re-elected with 53.2% of the vote in 2022.

### Candidates
#### Advanced to general

* Mike Garcia (Republican), incumbent U.S. representative
* George Whitesides (Democratic), former NASA chief of staff and former CEO of Virgin Galactic

#### Eliminated in primary

* Steve Hill (Democratic), appraiser and perennial candidate

#### Withdrawn

* Franky Carrillo (Democratic), member of the Los Angeles County Probation Oversight Commission (ran for state assembly, endorsed Whitesides)

### Endorsements
#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* American Independent Party
* California Republican Party
* Los Angeles County Republican Party

#### Newspapers

* Los Angeles Daily News
* Santa Clarita Valley Signal

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* Humane Society Legislative Fund
* Log Cabin Republicans PAC (post-primary)
* National Rifle Association Political Victory Fund
* Republican Jewish Coalition
* Santa Clarita Valley Chamber of Commerce

#### U.S. representatives

* Ami Bera, CA-6 (2013–present)
* Gabby Giffords, U.S. representative from Arizona's 8th congressional district (2007–2012)
* Josh Harder, CA-9 (2019–present)
* Hakeem Jeffries, House Minority Leader (2023–present) from NY-08 (2013–present)
* Seth Moulton, MA-06 (2015–present)
* Nancy Pelosi, CA-11 (1987–present) and former Speaker of the House (2007–2011, 2019–2023)
* Adam Schiff, CA-30 (2001–present)

#### State assemblymembers

* Juan Carrillo, 39th district (2022–present)
* Pilar Schiavo, 40th district (2022–present)
* Christy Smith, 38th district (2018–2020) and runner-up for this district in 2020 and 2022

#### Local officials

* Franky Carrillo, member of the Los Angeles County Probation Oversight Commission

#### Political parties

* California Democratic Party
* Los Angeles County Democratic Party

#### Organizations

* 314 Action
* California Environmental Voters
* California Young Democrats
* DCCC Red to Blue
* Equality California
* Everytown for Gun Safety
* Feminist Majority PAC
* Giffords
* League of Conservation Voters
* Natural Resources Defense Council (post-primary)
* New Dem Action Fund
* Planned Parenthood Action Fund
* Reproductive Freedom for All
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* International Federation of Professional and Technical Engineers
* Los Angeles County Federation of Labor
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* Service Employees International Union California
* United Association Local 398

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Mike Garcia (R) | $3,180,332 | $1,736,253 | $1,560,751 |
| George Whitesides (D) | $3,578,060 | $1,069,537 | $2,508,523 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Tossup | April 18, 2023 |
| Inside Elections | Tossup | March 10, 2023 |
| Sabato's Crystal Ball | Lean D (flip) | November 4, 2024 |
| Elections Daily | Lean R | November 4, 2024 |
| CNalysis | Tilt D (flip) | November 4, 2024 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Mike Garcia (R) | George Whitesides (D) | Undecided |
| USC/CSU | September 14–21, 2024 | 522 (LV) | ± 4.3% | 46% | 48% | 6% |
| Impact Research (D) | April 12–18, 2024 | 650 (V) | – | 44% | 47% | 9% |

### Results

California's 27th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Mike Garcia (incumbent) | 74,245 | 54.9 |
| | Democratic | George Whitesides | 44,391 | 32.8 |
| | Democratic | Steve Hill | 16,525 | 12.2 |
| Total votes | Total votes | Total votes | 135,161 | 100.0 |
| General election |||||
| | Democratic | George Whitesides | 154,040 | 51.3 |
| | Republican | Mike Garcia (incumbent) | 146,050 | 48.7 |
| Total votes | Total votes | Total votes | 300,090 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 28

The incumbent was Democrat Judy Chu, who had represented the district since 2013 and was re-elected with 66.2% of the vote in 2022.

### Candidates
#### Advanced to general

* Judy Chu (Democratic), incumbent U.S. representative
* April Verlato (Republican), mayor of Arcadia

#### Eliminated in primary

* Jose Castaneda (Libertarian), customer service representative
* William Patterson (Peace and Freedom), consultant

### Endorsements
#### Political parties

* California Libertarian Party

#### Political parties

* California Democratic Party
* California Young Democrats
* Los Angeles County Democratic Party

#### Organizations

* Americans for Democratic Action Southern California
* Armenian National Committee of America-Western Region
* California Environmental Voters
* Equality California
* Everytown for Gun Safety Action Fund
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* League of Conservation Voters
* National Women's Political Caucus
* Planned Parenthood Action Fund
* Population Connection Action Fund
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* Service Employees International Union California
* United Association Local 398
* United Auto Workers
* United Farm Workers

#### Political parties

* Peace and Freedom Party

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly
* Howard Jarvis Taxpayers Association PAC

#### Political parties

* California Republican Party
* Los Angeles County Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Judy Chu (D) | $954,243 | $769,610 | $3,531,026 |
| April Verlato (R) | $198,176 | $37,739 | $160,437 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 28th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Judy Chu (incumbent) | 99,261 | 62.7 |
| | Republican | April Verlato | 52,369 | 33.1 |
| | Peace and Freedom | William Patterson | 3,503 | 2.2 |
| | Libertarian | Jose Castaneda | 3,156 | 2.0 |
| Total votes | Total votes | Total votes | 158,289 | 100.0 |
| General election |||||
| | Democratic | Judy Chu (incumbent) | 204,489 | 64.9 |
| | Republican | April Verlato | 110,455 | 35.1 |
| Total votes | Total votes | Total votes | 314,944 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 29

The incumbent was Democrat Tony Cárdenas, who had represented the district since 2013 and was re-elected with 58.5% of the vote in 2022, running against another Democrat. On November 20, 2023, he announced that he would not seek re-election in 2024.

### Candidates
#### Advanced to general

* Benito Bernal (Republican), youth advocate, perennial candidate, and runner-up for this district in 2018
* Luz Rivas (Democratic), state assemblywoman from the 43rd district (2018–present)

#### Eliminated in primary

* Angelica Dueñas (Democratic), former president of the Sun Valley neighborhood council and runner-up for this district in 2020 and 2022

#### Declined

* Tony Cárdenas (Democratic), incumbent U.S. representative (endorsed Rivas)

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly
* California Rifle and Pistol Association (post-primary)

#### Political parties

* American Independent Party
* California Republican Party

#### Local officials

* Kenneth Mejia, Los Angeles City Controller

#### Individuals

* Howie Klein, former president of Reprise Records (1989–2001) and adjunct professor at McGill University
* Heather Digby Parton, political blogger

#### Organizations

* Americans for Democratic Action Southern California
* Vote Common Good

#### U.S. senators

* Alex Padilla, U.S. senator from California

#### U.S. representatives

* Tony Cárdenas, incumbent U.S. representative
* Lois Frankel, U.S. Representative from Florida (2013–present)

#### Organizations

* AIPAC
* California Environmental Voters
* Center for Biological Diversity Action Fund
* CHC BOLD PAC
* Congressional Progressive Caucus PAC
* Democratic Majority for Israel
* EMILY's List
* Equality California
* Everytown for Gun Safety (post-primary)
* Food & Water Action
* Friends of the Earth Action
* Latino Victory Fund
* League of Conservation Voters
* National Women's Political Caucus
* Planned Parenthood Action Fund (post-primary)
* PODER PAC
* Reproductive Freedom for All (post-primary)
* Sierra Club

#### Labor unions

* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* National Education Association
* National Nurses United
* United Association Local 398

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* Equality California

#### Labor unions

* International Brotherhood of Teamsters Joint Council 42
* National Education Association

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Angelica Dueñas (D) | $83,650 | $76,853 | $12,631 |
| Luz Rivas (D) | $344,596 | $191,449 | $136,748 |
| Benito Bernal (R) | $27,326 | $10,352 | $1,542 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 29th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Luz Rivas | 40,096 | 49.3 |
| | Republican | Benito Bernal | 21,446 | 26.4 |
| | Democratic | Angelica Dueñas | 19,844 | 24.4 |
| Total votes | Total votes | Total votes | 81,386 | 100.0 |
| General election |||||
| | Democratic | Luz Rivas | 146,312 | 69.8 |
| | Republican | Benito Bernal | 63,374 | 30.2 |
| Total votes | Total votes | Total votes | 209,686 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 30

The incumbent was Democrat Adam Schiff, who was re-elected with 71.1% of the vote in 2022, running against another Democrat. He did not seek re-election, instead choosing to run for the U.S. Senate.

### Candidates
#### Advanced to general

* Alex Balekian (Republican), physician
* Laura Friedman (Democratic), state assemblywoman from the 43rd district

#### Eliminated in primary

* Francisco Arreaga (Democratic), former policy advisor to U.S. Representative Dan Goldman
* Joshua Bocanegra (no party preference), software developer
* Steve Dunwoody (Democratic), government affairs executive and former special assistant to the U.S. Deputy Secretary of Energy
* Mike Feuer (Democratic), former Los Angeles City Attorney
* Sal Genovese, community services director and perennial candidate
* Maebe A. Girl (Democratic), Silver Lake neighborhood council board member and runner-up for this district in 2022
* Emilio Martinez (Republican), television producer
* Nick Melvoin (Democratic), member of the Los Angeles Board of Education
* Courtney Najera (Democratic), beautician
* Anthony Portantino (Democratic), state senator from the 25th district
* Jirair Ratevosian (Democratic), former senior advisor at the U.S. Department of State and former legislative director for U.S. Representative Barbara Lee
* Ben Savage (Democratic), actor known for Boy Meets World
* Sepi Shyne (Democratic), mayor of West Hollywood

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 30th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Laura Friedman | 46,329 | 30.1 |
| | Republican | Alex Balekian | 26,826 | 17.4 |
| | Democratic | Anthony Portantino | 20,459 | 13.3 |
| | Democratic | Mike Feuer | 18,878 | 12.3 |
| | Democratic | Maebe A. Girl | 15,791 | 10.3 |
| | Republican | Emilio Martinez | 6,775 | 4.4 |
| | Democratic | Ben Savage | 6,147 | 4.0 |
| | Democratic | Nick Melvoin | 4,134 | 2.7 |
| | Democratic | Jirair Ratevosian | 2,889 | 1.9 |
| | Democratic | Sepi Shyne | 2,126 | 1.4 |
| | Democratic | Courtney Simone Najera | 1,167 | 0.8 |
| | No party preference | Joshua Bocanegra | 780 | 0.5 |
| | Democratic | Steve Dunwoody | 727 | 0.5 |
| | Democratic | Francisco Arreaga | 532 | 0.3 |
| | Democratic | Sal Genovese | 442 | 0.3 |
| Total votes | Total votes | Total votes | 154,002 | 100.0 |
| General election |||||
| | Democratic | Laura Friedman | 213,100 | 68.4 |
| | Republican | Alex Balekian | 98,559 | 31.6 |
| Total votes | Total votes | Total votes | 311,659 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 31

The incumbent was Democrat Grace Napolitano, who was re-elected with 59.5% of the vote in 2022. Napolitano decided to retire rather than seek re-election.

### Candidates
#### Advanced to general

* Gil Cisneros (Democratic), former U.S. Under Secretary of Defense for Personnel and Readiness (2021–2023) and former U.S. Representative from the 39th district (2019–2021)
* Daniel Martinez (Republican), attorney and runner-up for this district in 2022

#### Eliminated in primary

* Bob Archuleta (Democratic), state senator from the 30th district (2018–present)
* Pedro Casas (Republican), clinical psychologist
* Greg Hafif (Democratic), attorney
* Kurt Jose (Democratic), businessman
* Erskine Levi (American Solidarity Party), teacher
* Mary Ann Lutz (Democratic), president of the Citrus College Board of Trustees, former mayor of Monrovia, and former policy advisor to incumbent Grace Napolitano
* Marie Manvel (no party preference), former member of the Santa Monica Social Services Commission and runner-up for State Board of Equalization District 3 in 2022
* Susan Rubio (Democratic), state senator from the 22nd district (2018–present)

#### Declined

* Grace Napolitano (Democratic), incumbent U.S. representative (endorsed Archuleta)

### Endorsements
#### U.S. representatives

* Grace Napolitano, U.S. representative from California's 31st congressional district (1999–present)

#### Statewide officials

* Fiona Ma, California State Treasurer (2019–present)

#### Labor unions

* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* Service Employees International Union California (co-endorsement with Cisneros)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association

#### Political parties

* California Republican Party

#### U.S. representatives

* Pete Aguilar, California's 33rd congressional district (2015–present)
* Nanette Barragán, California's 44th congressional district (2017–present)
* Salud Carbajal, California's 24th congressional district (2017–present)
* Tony Cárdenas, California's 29th congressional district (2013–present)
* Judy Chu, California's 28th congressional district (2009–present)
* Jim Costa, California's 21st congressional district (2005–present)
* John Garamendi, California's 8th congressional district (2009–present)
* Robert Garcia, California's 42nd congressional district (2023–present)
* Gabby Giffords, Arizona's 8th congressional district (2007–2012)
* Josh Harder, California's 9th congressional district (2019–present)
* Mike Levin, California's 49th congressional district (2019–present)
* Grace Meng, NY-9 (2013–present)
* Nancy Pelosi, Speaker Emerita (2007–2011, 2019–2023) from CA-11 (1987–present)
* Katie Porter, California's 47th congressional district (2019–present)
* Raul Ruiz, California's 25th congressional district (2013–present)
* Linda Sánchez, California's 38th congressional district (2003–present)
* Mark Takano, California's 39th congressional district (2013–present)
* Mike Thompson, California's 4th congressional district (1999–present)

#### Municipal officials

* Hilda Solis, Los Angeles County supervisor from the 1st district (2014–present), former U.S. Secretary of Labor (2009–2013), and former U.S. representative from California's 32nd congressional district (2001–2009)

#### Local officials

* Fidel Vargas, former mayor of Baldwin Park (1992–1997)

#### Labor unions

* International Association of Sheet Metal, Air, Rail and Transportation Workers
* International Union of Operating Engineers Local 12
* International Union of Painters and Allied Trades District Council 36
* Service Employees International Union California (co-endorsement with Archuleta)

#### Organizations

* American Israel Public Affairs Committee (AIPAC)
* ASPIRE PAC
* California Environmental Voters
* CHC BOLD PAC
* Democratic Majority for Israel (post-primary)
* Everytown for Gun Safety (post-primary)
* Giffords
* League of Conservation Voters
* New Democrat Coalition Action Fund
* Planned Parenthood Action Fund (post-primary)
* Pro-Israel America
* Reproductive Freedom for All (post-primary)
* With Honor Fund

#### Organizations

* National Organization for Women PAC
* National Women's Political Caucus (co-endorsement with Rubio)
* Vote Common Good

#### Labor unions

* United Association Local 398

#### Organizations

* National Women's Political Caucus (co-endorsement with Lutz)
* PODER PAC

#### Labor unions

* California Teachers Association
* National Education Association
* National Union of Healthcare Workers

#### Organizations

* American Israel Public Affairs Committee (AIPAC)
* Feminist Majority PAC

#### Political parties

* California Democratic Party

#### Labor unions

* California Federation of Labor

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Bob Archuleta (D) | $513,580 | $494,266 | $19,314 |
| Gil Cisneros (D) | $4,641,856 | $4,534,715 | $107,140 |
| Greg Hafif (D) | $826,060 | $555,576 | $270,483 |
| Mary Ann Lutz (D) | $625,215 | $373,697 | $251,517 |
| Susan Rubio (D) | $554,685 | $396,341 | $158,343 |
| Source: Federal Election Commission ||||

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Bob Archuleta (D) | Pedro Casas (R) | Gil Cisneros (D) | Greg Hafif (D) | Mary Ann Lutz (D) | Daniel Martinez (R) | Susan Rubio (D) | Other | Undecided |
| Tulchin Research (D) | December 14–19, 2023 | 600 (LV) | ± 4.0% | 4% | 4% | 27% | 3% | 2% | 10% | 12% | 9% | 28% |

### Predictions

| Source | Ranking | As of |
| Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 31st congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Gil Cisneros | 23,888 | 23.6 |
| | Republican | Daniel Martinez | 19,464 | 19.2 |
| | Republican | Pedro Casas | 17,077 | 16.9 |
| | Democratic | Susan Rubio | 16,006 | 15.8 |
| | Democratic | Bob Archuleta | 10,151 | 10.0 |
| | Democratic | Mary Ann Lutz | 6,629 | 6.5 |
| | Democratic | Greg Hafif | 4,914 | 4.9 |
| | Democratic | Kurt Jose | 1,415 | 1.4 |
| | No party preference | Erskine Levi | 1,166 | 1.2 |
| | No party preference | Marie Manvel | 534 | 0.5 |
| Total votes | Total votes | Total votes | 101,244 | 100.0 |
| General election |||||
| | Democratic | Gil Cisneros | 148,095 | 59.7 |
| | Republican | Daniel Martinez | 99,856 | 40.3 |
| Total votes | Total votes | Total votes | 247,951 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 32

The incumbent was Democrat Brad Sherman, who had represented the district since 2013 and was re-elected with 69.2% of the vote in 2022.

### Candidates
#### Advanced to general

* Brad Sherman (Democratic), incumbent U.S. representative
* Larry Thompson (Republican), attorney and candidate for the 37th district in 2020

#### Eliminated in primary

* Dave Abbitt (Democratic), digital media producer
* Christopher Ahuja (Democratic), talent agent
* James Shuster (Republican), retired businessman
* Douglas Smith (Democratic), stage manager

#### Withdrew

* Trevor Witt (Democratic), driver

### Endorsements
#### Organizations

* Americans for Democratic Action Southern California
* Ventura County Young Democrats

#### Local officials

* Dennis Zine, former Los Angeles city councilor from the 3rd district (Independent)

#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* AIPAC
* Armenian National Committee of America-Western Region
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Humane Society Legislative Fund
* Planned Parenthood Action Fund (post-primary)
* Population Connection Action Fund
* Pro-Israel America
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* SEIU United Healthcare Workers West
* United Association Local 398
* United Auto Workers

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council

#### Political parties

* American Independent Party
* California Republican Party

#### Individuals

* Perianne Boring, entrepreneur
* Brock Pierce, cryptocurrency investor, former actor

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Dave Abbitt (D) | $2,240 | $0 | $2,240 |
| Brad Sherman (D) | $984,660 | $533,849 | $3,419,583 |
| James Shuster (R) | $5,421 | $6,911 | $0 |
| Larry Thompson (R) | $71,981 | $59,149 | $12,831 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 32nd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Brad Sherman (incumbent) | 91,952 | 58.6 |
| | Republican | Larry Thompson | 29,939 | 19.1 |
| | Republican | James Shuster | 16,601 | 10.6 |
| | Democratic | Christopher Ahuja | 12,637 | 8.1 |
| | Democratic | Douglas Smith | 2,504 | 1.6 |
| | Democratic | David Abbitt | 1,665 | 1.1 |
| | Democratic | Trevor Witt (withdrawn) | 1,635 | 1.0 |
| Total votes | Total votes | Total votes | 156,933 | 100.0 |
| General election |||||
| | Democratic | Brad Sherman (incumbent) | 212,934 | 66.2 |
| | Republican | Larry Thompson | 108,711 | 33.8 |
| Total votes | Total votes | Total votes | 321,645 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 33

The incumbent was Democrat Pete Aguilar, who had represented the district since 2015 and was re-elected with 61.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Pete Aguilar (Democratic), incumbent U.S. representative
* Tom Herman (Republican), property manager

#### Write-in candidates

* John Mark Porter (Republican), disaster response coordinator and runner-up for this district in 2022
* Ernest Richter (Republican), retired businessman and candidate for this district in 2022

#### Withdrew

* Sarah Sun Liew (Republican), businesswoman, candidate for this district in 2020, and candidate for U.S. Senate in 2022 (ran for U.S. Senate)

### Endorsements
#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Everytown for Gun Safety Action Fund
* Humane Society Legislative Fund
* J Street PAC
* League of Conservation Voters
* Planned Parenthood Action Fund

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* United Association Local 398
* United Auto Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Pete Aguilar (D) | $3,427,439 | $1,993,237 | $3,013,958 |
| Tom Herman (R) | $4,692 | $2,710 | $1,982 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 33rd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Pete Aguilar (incumbent) | 45,065 | 57.1 |
| | Republican | Tom Herman | 33,815 | 42.8 |
| | Republican | John Mark Porter (write-in) | 104 | 0.1 |
| | Republican | Ernest Richter (write-in) | 3 | 0.0 |
| Total votes | Total votes | Total votes | 78,987 | 100.0 |
| General election |||||
| | Democratic | Pete Aguilar (incumbent) | 137,197 | 58.8 |
| | Republican | Tom Herman | 96,078 | 41.2 |
| Total votes | Total votes | Total votes | 233,275 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 34

The incumbent was Democrat Jimmy Gomez, who had represented the district since 2017 and was re-elected with 51.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Jimmy Gomez (Democratic), incumbent U.S. representative
* David Kim (Democratic), former MacArthur Park neighborhood council board member and runner-up for this district in 2020 and 2022

#### Eliminated in primary

* David Ferrell (Democratic), attorney
* Calvin Lee (Republican), businessman
* Aaron Reveles (Peace and Freedom), teacher

### Endorsements
#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* End Citizens United
* Equality California
* Humane Society Legislative Fund
* League of Conservation Voters
* Peace Action
* Planned Parenthood Action Fund
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* SEIU United Healthcare Workers West
* United Association Local 398
* United Auto Workers
* United Farm Workers

#### Local officials

* Kenneth Mejia, Los Angeles City Controller

#### Organizations

* Americans for Democratic Action Southern California
* Vote Common Good

#### Political parties

* American Independent Party
* California Republican Party

#### Political parties

* Peace and Freedom Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| David Ferrell (D) | $9,072 | $5,930 | $3,141 |
| Jimmy Gomez (D) | $1,088,878 | $733,445 | $910,936 |
| David Kim (D) | $100,011 | $95,640 | $4,371 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 34th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Jimmy Gomez (incumbent) | 41,611 | 51.2 |
| | Democratic | David Kim | 22,703 | 27.9 |
| | Republican | Calvin Lee | 11,495 | 14.1 |
| | Peace and Freedom | Aaron Reveles | 3,223 | 4.0 |
| | Democratic | David Ferrell | 2,312 | 2.8 |
| Total votes | Total votes | Total votes | 81,344 | 100.0 |
| General election |||||
| | Democratic | Jimmy Gomez (incumbent) | 105,394 | 55.6 |
| | Democratic | David Kim | 84,020 | 44.4 |
| Total votes | Total votes | Total votes | 189,414 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 35

The incumbent was Democrat Norma Torres, who had represented the district since 2015 and was re-elected with 57.4% of the vote in 2022.

### Candidates
#### Advanced to general

* Mike Cargile (Republican), independent filmmaker and runner-up for this district in 2020 and 2022
* Norma Torres (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Melissa May (Democratic), former Mountain View School District trustee
* Vijal Suthar (Republican), hotel manager

### Endorsements
#### Organizations

* California ProLife Council
* California Rifle and Pistol Association

#### Political parties

* American Independent Party

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans

#### U.S. representatives

* Gabby Giffords, U.S. representative from Arizona's 8th congressional district (2007–2012)

#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* Equality California
* Feminist Majority PAC
* Giffords
* Humane Society Legislative Fund
* League of Conservation Voters
* National Women's Political Caucus
* Planned Parenthood Action Fund
* Population Connection Action Fund

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* United Association Local 398
* United Auto Workers

#### Newspapers

* Inland Valley Daily Bulletin

#### Organizations

* California Young Democrats

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Norma Torres (D) | $453,582 | $529,935 | $271,829 |
| Mike Cargile (R) | $51,310 | $47,539 | $5,143 |
| Melissa May (D) | $13,394 | $12,041 | $1,352 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 35th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Norma Torres (incumbent) | 39,051 | 48.2 |
| | Republican | Mike Cargile | 32,082 | 39.6 |
| | Democratic | Melissa May | 6,432 | 7.9 |
| | Republican | Vijal Suthar | 3,491 | 4.3 |
| Total votes | Total votes | Total votes | 81,056 | 100.0 |
| General election |||||
| | Democratic | Norma Torres (incumbent) | 136,413 | 58.4 |
| | Republican | Mike Cargile | 97,142 | 41.6 |
| Total votes | Total votes | Total votes | 233,555 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 36

The incumbent was Democrat Ted Lieu, who had represented the district since 2015 and was re-elected with 69.8% of the vote in 2022.

### Candidates
#### Advanced to general

* Ted Lieu (Democratic), incumbent U.S. representative
* Melissa Toomim (Republican), journalist and candidate for the 32nd district in 2022

#### Eliminated in primary

* Claire Anderson (no party preference), businesswoman
* Ariana Hakami (Republican), financial advisor and candidate for this district in 2022

### Endorsements
#### Organizations

* California ProLife Council

#### Political parties

* California Democratic Party
* Culver City Democratic Party
* Los Angeles Democratic Party

#### Organizations

* AIPAC
* Americans for Democratic Action Southern California
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Everytown for Gun Safety Action Fund
* Feminist Majority PAC
* Humane Society Legislative Fund
* Natural Resources Defense Council
* Planned Parenthood Action Fund
* Population Connection Action Fund
* Pro-Israel America
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Union of Healthcare Workers
* United Association Local 398
* United Auto Workers

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans

#### Political parties

* American Independent Party
* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Ted Lieu (D) | $1,284,495 | $1,459,830 | $619,055 |
| Ariana Hakami (R) | $2,840 | $2,802 | $243 |
| Melissa Toomim (R) | $13,331 | $12,458 | $1,020 |
| Claire Anderson (NPP) | $25,521 | $23,762 | $1,759 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 36th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Ted Lieu (incumbent) | 125,858 | 68.5 |
| | Republican | Melissa Toomim | 27,440 | 14.9 |
| | Republican | Ariana Hakami | 25,823 | 14.1 |
| | No party preference | Claire Anderson | 4,509 | 2.5 |
| Total votes | Total votes | Total votes | 183,630 | 100.0 |
| General election |||||
| | Democratic | Ted Lieu (incumbent) | 246,002 | 68.7 |
| | Republican | Melissa Toomim | 111,985 | 31.3 |
| Total votes | Total votes | Total votes | 357,987 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 37

The incumbent was Democrat Sydney Kamlager-Dove, who had represented the district since 2023. She was elected with 64.0% of the vote in 2022, running against another Democrat.

### Candidates
#### Advanced to general

* Sydney Kamlager-Dove (Democratic), incumbent U.S. representative
* Juan Rey (no party preference), train mechanic

#### Eliminated in primary

* Adam Carmichael (Democratic), software engineer
* Baltazar Fedalizo (Republican), businessman and candidate for this district in 2022 (write-in)
* John Parker (Peace and Freedom), political organizer and activist

### Endorsements
#### Political parties

* California Democratic Party
* Culver City Democratic Party
* Los Angeles Democratic Party

#### Organizations

* Americans for Democratic Action Southern California
* California Environmental Voters
* California Young Democrats
* Equality California
* Humane Society Legislative Fund
* J Street PAC
* Jewish Democratic Council of America (post-primary)
* League of Conservation Voters
* National Women's Political Caucus
* Planned Parenthood Action Fund
* Population Connection Action Fund
* Sierra Club
* Stonewall Democratic Club
* Vote Mama

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* United Association Local 398
* United Auto Workers

#### Newspapers

* Los Angeles Sentinel

#### Organizations

* California ProLife Council

#### Political parties

* Peace and Freedom Party

#### Political parties

* Working Class Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Sydney Kamlager-Dove (D) | $643,384 | $569,532 | $175,730 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 37th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Sydney Kamlager-Dove (incumbent) | 62,413 | 71.8 |
| | No party preference | Juan Rey | 8,917 | 10.3 |
| | Democratic | Adam Carmichael | 7,520 | 8.7 |
| | Peace and Freedom | John Parker | 7,316 | 8.4 |
| | Republican | Baltazar Fedalizo (write-in) | 752 | 0.9 |
| Total votes | Total votes | Total votes | 86,918 | 100.0 |
| General election |||||
| | Democratic | Sydney Kamlager-Dove (incumbent) | 160,364 | 78.3 |
| | No party preference | Juan Rey | 44,450 | 21.7 |
| Total votes | Total votes | Total votes | 204,814 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 38

The incumbent was Democrat Linda Sánchez, who had represented the district since 2013 and was re-elected with 58.1% of the vote in 2022.

### Candidates
#### Advanced to general

* Eric Ching (Republican), Walnut city councilor and runner-up for this district in 2022
* Linda Sánchez (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Robert Ochoa (Republican), entrepreneur
* John Sarega (Republican), businessman and candidate for this district in 2022

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans

#### Political parties

* American Independent Party
* California Republican Party

#### Organizations

* California Rifle and Pistol Association

#### Political parties

* California Democratic Party

#### Organizations

* AIPAC
* Americans for Democratic Action Southern California
* California Environmental Voters
* California Young Democrats
* Equality California
* Humane Society Legislative Fund
* J Street PAC
* Joint Action Committee for Political Affairs
* National Women's Political Caucus
* Planned Parenthood Action Fund (post-primary)
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* UFCW Local 324
* United Association Local 398
* United Auto Workers
* United Farm Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Linda Sánchez (D) | $911,863 | $757,636 | $597,371 |
| Eric Ching (R) | $16,307 | $4,687 | $16,483 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 38th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Linda Sánchez (incumbent) | 62,325 | 56.2 |
| | Republican | Eric Ching | 26,744 | 24.1 |
| | Republican | John Sarega | 13,841 | 12.5 |
| | Republican | Robert Ochoa | 8,034 | 7.2 |
| Total votes | Total votes | Total votes | 110,944 | 100.0 |
| General election |||||
| | Democratic | Linda Sánchez (incumbent) | 165,110 | 59.8 |
| | Republican | Eric Ching | 110,818 | 40.2 |
| Total votes | Total votes | Total votes | 275,928 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 39

The incumbent was Democrat Mark Takano, who had represented the district since 2013 and was re-elected with 57.7% of the vote in 2022.

### Candidates
#### Advanced to general

* David Serpa (Republican), businessman
* Mark Takano (Democratic), incumbent U.S. representative

### Endorsements
#### Organizations

* California Rifle and Pistol Association

#### Political parties

* California Republican Party

#### Individuals

* Kelley Robinson, president of Human Rights Campaign

#### Political parties

* California Democratic Party

#### Organizations

* Americans for Democratic Action Southern California
* Asian American Action Fund
* Bend the Arc
* California Environmental Voters
* California Young Democrats
* Equality California
* Everytown for Gun Safety Action Fund
* Human Rights Campaign
* Humane Society Legislative Fund
* J Street PAC
* Planned Parenthood Action Fund (post-primary)
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* United Association Local 398
* United Auto Workers

### Fundraising

Campaign finance reports as of June 30, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Mark Takano (D) | $907,118 | $1,113,661 | $284,662 |
| David Serpa (R) | $26,133 | $18,307 | $7,826 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 39th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Mark Takano (incumbent) | 48,351 | 55.5 |
| | Republican | David Serpa | 38,750 | 44.5 |
| Total votes | Total votes | Total votes | 87,101 | 100.0 |
| General election |||||
| | Democratic | Mark Takano (incumbent) | 130,191 | 56.7 |
| | Republican | David Serpa | 99,469 | 43.3 |
| Total votes | Total votes | Total votes | 229,660 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 40

The incumbent was Republican Young Kim, who was re-elected with 56.8% of the vote in 2022.

### Candidates
#### Advanced to general

* Joe Kerr (Democratic), retired Orange County fire captain, candidate for Orange County Board of Supervisors District 4 in 2018, and candidate for SD-38 in 2022
* Young Kim (Republican), incumbent U.S. representative

#### Eliminated in primary

* Allyson Muñiz Damikolas (Democratic), Tustin Unified School District trustee

### Endorsements
#### U.S. representatives

* Lou Correa, CA-46 (2017–present)
* Val Hoyle, OR-4 (2023–present)
* Pramila Jayapal, WA-7 (2017–present)
* Mike Levin, CA-49 (2019–present)
* Mark Pocan, WI-2 (2013–present)
* Katie Porter, CA-47 (2019–present)
* Jamie Raskin, MD-8 (2017–present)
* Adam Schiff, CA-30 (2001–present)

#### Statewide officials

* Jerry Brown, former governor of California (1975–1983, 2011–2019)
* Fiona Ma, California State Treasurer (2019–present)
* Gavin Newsom, governor of California (2019–present)

#### State senators

* Joe Dunn, 34th district (1998–2006)
* Dave Min, 34th district (2020–present)
* Josh Newman, 29th district (2020–present)
* Tom Umberg, 34th district (2018–present)

#### State assemblymembers

* Adam Gray, 21st district (2012–2022)
* Sharon Quirk-Silva, 65th district (2016–present)

#### Local officials

* Ashleigh Aitken, mayor of Anaheim (2022–present)
* Farrah Khan, mayor of Irvine (2020–present)

#### Organizations

* California Young Democrats
* Congressional Progressive Caucus PAC
* Democratic Majority for Israel (post-primary)
* Equality California (post-primary)
* Jewish Democratic Council of America (post-primary)
* National Women's Political Caucus
* Planned Parenthood Action Fund (post-primary)
* Reproductive Freedom for All (post-primary)

#### Labor unions

* AFSCME California
* American Federation of State, County and Municipal Employees
* Association of Flight Attendants
* California AFL-CIO
* California School Employees Association
* Communications Workers of America Local 9510
* International Association of Fire Fighters Local 3522 and 3631
* International Brotherhood of Electrical Workers Local 47 and 441
* International Brotherhood of Teamsters District Joint Council 42
* International Union of Painters and Allied Trades District Council 36
* Laborers' Union Local 652
* Office and Professional Employees International Union
* Orange County Employees Association
* Orange County Labor Federation
* United Association Local 250
* United Association Local 398
* United Auto Workers

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Newspapers

* Orange County Register

#### Political parties

* California Republican Party

#### Organizations

* AIPAC
* Americans for Prosperity
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* Howard Jarvis Taxpayers Association PAC
* Humane Society Legislative Fund
* The LIBRE Initiative
* Log Cabin Republicans PAC (post-primary)
* Maggie's List
* National Rifle Association Political Victory Fund
* Pro-Israel America
* United States Chamber of Commerce

#### U.S. representatives

* Lois Frankel, FL-22 (2013–present)
* Linda Sánchez, CA-38 (2003–present)

#### Organizations

* 314 Action Fund
* CHC BOLD PAC
* EMILY's List
* Equality California
* Latino Victory Fund
* National Organization for Women PAC
* National Women's Political Caucus
* PODER PAC

#### Labor unions

* California Teachers Association
* National Education Association
* National Union of Healthcare Workers

#### Political parties

* California Democratic Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Young Kim (R) | $4,097,491 | $1,987,963 | $2,509,006 |
| Allyson Muñiz Damikolas (D) | $549,563 | $494,776 | $54,786 |
| Joe Kerr (D) | $1,082,947 | $1,002,971 | $79,976 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Likely R | February 2, 2023 |
| Inside Elections | Likely R | March 10, 2023 |
| Sabato's Crystal Ball | Likely R | November 4, 2024 |
| Elections Daily | Likely R | November 4, 2024 |
| CNalysis | Lean R | November 4, 2024 |

### Results

California's 40th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Young Kim (incumbent) | 109,963 | 56.4 |
| | Democratic | Joe Kerr | 49,965 | 25.6 |
| | Democratic | Allyson Muñiz Damikolas | 35,153 | 18.0 |
| Total votes | Total votes | Total votes | 195,081 | 100.0 |
| General election |||||
| | Republican | Young Kim (incumbent) | 211,998 | 55.3 |
| | Democratic | Joe Kerr | 171,637 | 44.7 |
| Total votes | Total votes | Total votes | 383,635 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 41

The incumbent was Republican Ken Calvert, who was re-elected with 52.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Ken Calvert (Republican), incumbent U.S. representative
* Will Rollins (Democratic), counterterrorism attorney and runner-up for this district in 2022

#### Eliminated in primary

* Anna Nevenic (Democratic), nurse and perennial candidate

### Endorsements
#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Political parties

* American Independent Party
* California Republican Party

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Republican Assembly
* California Rifle and Pistol Association
* Humane Society Legislative Fund
* Log Cabin Republicans PAC (post-primary)
* National Rifle Association Political Victory Fund
* Pro-Israel America
* Republican Jewish Coalition
* U.S. Chamber of Commerce

#### U.S. senators

* Barbara Boxer, former U.S. senator from California (1993–2017)

#### U.S. representatives

* Pete Aguilar, CA-33 (2015–present)
* Nanette Barragán, CA-44 (2017–present)
* Ami Bera, CA-6 (2013–present)
* Salud Carbajal, CA-24 (2017–present)
* Tony Cárdenas, CA-29 (2013–present)
* Judy Chu, CA-28 (2009–present)
* Jim Costa, CA-21 (2005–present)
* Mark DeSaulnier, CA-10 (2015–present)
* Anna Eshoo, CA-16 (1993–present)
* John Garamendi, CA-8 (2009–present)
* Robert Garcia, CA-42 (2023–present)
* Gabby Giffords, AZ-8 (2007–2012)
* Jared Huffman, CA-2 (2013–present)
* Sara Jacobs, CA-51 (2021–present)
* Sydney Kamlager-Dove, CA-37 (2023–present)
* Ro Khanna, CA-17 (2017–present)
* Barbara Lee, CA-12 (1998–present)
* Mike Levin, CA-49 (2019–present)
* Ted Lieu, CA-36 (2015–present)
* Zoe Lofgren, CA-18 (1995–present)
* Doris Matsui, CA-7 (2005–present)
* Seth Moulton, MA-06 (2015–present)
* Kevin Mullin, CA-15 (2023–present)
* Grace Napolitano, CA-31 (1999–present)
* Nancy Pelosi, CA-11 (1987–present) and former Speaker of the House (2007–2011, 2019–2023)
* Scott Peters, CA-50 (2013–present)
* Katie Porter, CA-47 (2019–present)
* Raul Ruiz, CA-25 (2013–present)
* Adam Schiff, CA-30 (2001–present)
* Brad Sherman, CA-32 (1997–present)
* Eric Swalwell, CA-14 (2013–present)
* Mark Takano, CA-39 (2013–present)
* Ritchie Torres, NY-15 (2021–present)

#### State legislators

* Adrian Boafo, Maryland state delegate from the 23rd district (2023–present)

#### Political parties

* California Democratic Party

#### Organizations

* Blue Dog PAC
* California Environmental Voters
* California Young Democrats
* Congressional Equality Caucus PAC
* DCCC Red to Blue
* Democratic Majority for Israel
* Desert Stonewall Democrats
* End Citizens United
* Equality California
* Everytown for Gun Safety (post-primary)
* Giffords
* Human Rights Campaign
* Jewish Democratic Council of America
* League of Conservation Voters
* LGBTQ Victory Fund
* Natural Resources Defense Council (post-primary)
* NewDem Action Fund
* Patriotic Millionaires
* Planned Parenthood Action Fund
* Reproductive Freedom for All
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* Association of Flight Attendants
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* Communications Workers of America
* IBEW Local 440
* National Education Association
* National Union of Healthcare Workers
* Palm Springs Police Officers Association
* SEIU United Healthcare Workers West
* Service Employees International Union California
* United Association Local 398
* United Auto Workers

### Fundraising

Campaign finance reports as of March 31, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Ken Calvert (R) | $4,395,180 | $1,825,606 | $2,639,377 |
| Anna Nevenic (D) | $11,180 | $5,780 | $5,400 |
| Will Rollins (D) | $4,775,382 | $1,658,288 | $3,162,026 |
| Source: Federal Election Commission ||||

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Ken Calvert (R) | Will Rollins (D) | Other/Undecided |
| Global Strategy Group (D) | October 3–6, 2024 | 500 (LV) | ± 4.4% | 45% | 45% | 10% |
| USC/CSU | September 14–21, 2024 | 539 (LV) | ± 4.2% | 48% | 47% | 5% |
| RMG Research | September 5–12, 2024 | 461 (LV) | ± 4.6% | 35% | 41% | 24% |
| David Binder Research (D) | May 1–6, 2024 | 600 (LV) | ± 4.0% | 44% | 45% | 11% |

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Tossup | February 2, 2023 |
| Inside Elections | Tilt R | May 9, 2024 |
| Sabato's Crystal Ball | Lean R | November 4, 2024 |
| Elections Daily | Lean R | November 4, 2024 |
| CNalysis | Tilt R | November 4, 2024 |

### Results

California's 41st congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Ken Calvert (incumbent) | 85,959 | 53.0 |
| | Democratic | Will Rollins | 62,245 | 38.4 |
| | Democratic | Anna Nevenic | 13,862 | 8.6 |
| Total votes | Total votes | Total votes | 162,066 | 100.0 |
| General election |||||
| | Republican | Ken Calvert (incumbent) | 183,216 | 51.7 |
| | Democratic | Will Rollins | 171,229 | 48.3 |
| Total votes | Total votes | Total votes | 354,445 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 42

The incumbent was Democrat Robert Garcia, who had represented the district since 2023, and was elected with 68.4% of the vote in 2022.

### Candidates
#### Advanced to general

* John Briscoe (Republican), Ocean View School District trustee, perennial candidate, and runner-up for this district in 2022
* Robert Garcia (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Joaquin Beltran (Democratic), engineer and candidate for this district in 2022
* Nicole López (Democratic), communications consultant and candidate for this district in 2022

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council

#### Political parties

* California Republican Party

#### Individuals

* Kelley Robinson, president of Human Rights Campaign

#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* California Young Democrats
* Equality California
* Human Rights Campaign
* Humane Society Legislative Fund
* Joint Action Committee for Political Affairs
* Planned Parenthood Action Fund
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Union of Healthcare Workers
* SEIU United Healthcare Workers West
* UFCW Local 324
* United Association Local 398
* United Auto Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Joaquin Beltran (D) | $17,195 | $14,722 | $2,472 |
| Robert Garcia (D) | $721,147 | $553,777 | $497,931 |
| Nicole López (D) | $3,339 | $2,544 | $1,095 |
| John Briscoe (R) | $250,000 | $4,308 | $245,691 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 42nd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert Garcia (incumbent) | 49,891 | 52.1 |
| | Republican | John Briscoe | 30,599 | 31.9 |
| | Democratic | Nicole López | 8,758 | 9.1 |
| | Democratic | Joaquin Beltran | 6,532 | 6.8 |
| Total votes | Total votes | Total votes | 95,780 | 100.0 |
| General election |||||
| | Democratic | Robert Garcia (incumbent) | 159,153 | 68.1 |
| | Republican | John Briscoe | 74,410 | 31.9 |
| Total votes | Total votes | Total votes | 233,563 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 43

The incumbent was Democrat Maxine Waters, who had represented the district since 1991 and was re-elected with 77.3% of the vote in 2022.

### Candidates
#### Advanced to general

* Maxine Waters (Democratic), incumbent U.S. representative
* Steve Williams (Republican), real estate broker

#### Eliminated in primary

* Gregory Cheadle (Democratic), attorney and perennial candidate
* David Knight (Republican), education business owner
* Chris Wiggins (Democratic), human resources recruiter and runner-up for the 37th district in 2016

### Endorsements
#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* Americans for Democratic Action Southern California
* California Environmental Voters
* California Young Democrats
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* League of Conservation Voters
* Planned Parenthood Action Fund
* Sierra Club
* Stonewall Democratic Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* IBEW Local 11
* International Brotherhood of Teamsters Joint Council 42
* National Union of Healthcare Workers
* United Association Local 398

#### Newspapers

* Los Angeles Sentinel

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California ProLife Council
* California Republican Assembly
* California Rifle and Pistol Association (post-primary)
* Howard Jarvis Taxpayers Association PAC

#### Political parties

* American Independent Party
* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Maxine Waters (D) | $429,143 | $508,279 | $156,496 |
| Chris Wiggins (D) | $650 | $0 | $1,225 |
| David Knight (R) | $4,475 | $3,728 | $747 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 43rd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Maxine Waters (incumbent) | 54,673 | 69.8 |
| | Republican | Steve Williams | 10,896 | 13.9 |
| | Republican | David Knight | 5,647 | 7.2 |
| | Democratic | Chris Wiggins | 4,999 | 6.4 |
| | Democratic | Gregory Cheadle | 2,075 | 2.7 |
| Total votes | Total votes | Total votes | 78,290 | 100.0 |
| General election |||||
| | Democratic | Maxine Waters (incumbent) | 160,080 | 75.1 |
| | Republican | Steve Williams | 53,152 | 24.9 |
| Total votes | Total votes | Total votes | 213,232 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 44

The incumbent was Democrat Nanette Barragán, who had represented the district since 2017 and was re-elected with 72.2% of the vote in 2022.

### Candidates
#### Advanced to general

* Nanette Barragán (Democratic), incumbent U.S. representative
* Roger Groh (Republican), investment manager

### Endorsements
#### Political parties

* California Democratic Party
* Los Angeles Democratic Party

#### Organizations

* AIPAC
* Americans for Democratic Action Southern California
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Everytown for Gun Safety (post-primary)
* Feminist Majority PAC
* Friends of the Earth Action
* Humane Society Legislative Fund
* League of Conservation Voters
* National Women's Political Caucus
* Planned Parenthood Action Fund (post-primary)
* Sierra Club

#### Labor unions

* AFSCME California
* Association of Flight Attendants
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* International Brotherhood of Teamsters Joint Council 42 and Local 11
* National Union of Healthcare Workers
* United Auto Workers
* United Farm Workers

#### Newspapers

* Los Angeles Sentinel

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Nanette Barragán (D) | $645,140 | $730,488 | $1,418,423 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 44th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Nanette Barragán (incumbent) | 63,622 | 70.8 |
| | Republican | Roger Groh | 26,188 | 29.2 |
| Total votes | Total votes | Total votes | 89,810 | 100.0 |
| General election |||||
| | Democratic | Nanette Barragán (incumbent) | 164,765 | 71.4 |
| | Republican | Roger Groh | 66,087 | 28.6 |
| Total votes | Total votes | Total votes | 230,852 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 45

The incumbent was Republican Michelle Steel, who was re-elected with 52.4% of the vote in 2022.

### Candidates
#### Advanced to general

* Michelle Steel (Republican), incumbent U.S. Representative
* Derek Tran (Democratic), Consumer Attorneys of California board member

#### Eliminated in primary

* Cheyenne Hunt (Democratic), attorney and TikTok influencer
* Kim Nguyen-Penaloza (Democratic), Garden Grove city councilor and runner-up for Orange County Board of Supervisors District 2 in 2022
* Aditya Pai (Democratic), attorney

#### Endorsements
##### Organizations

* U.S. Chamber of Commerce (post-primary)

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Tossup | September 6, 2024 |
| Inside Elections | Tossup | October 18, 2024 |
| Sabato's Crystal Ball | Lean R | November 4, 2024 |
| Elections Daily | Lean R | November 4, 2024 |
| CNalysis | Tilt D (flip) | November 4, 2024 |

### Results

California's 45th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Michelle Steel (incumbent) | 78,022 | 54.9 |
| | Democratic | Derek Tran | 22,546 | 15.9 |
| | Democratic | Kim Bernice Nguyen-Penaloza | 22,179 | 15.6 |
| | Democratic | Cheyenne Hunt | 11,973 | 8.4 |
| | Democratic | Aditya Pai | 7,399 | 5.2 |
| Total votes | Total votes | Total votes | 142,119 | 100.0 |
| General election |||||
| | Democratic | Derek Tran | 158,264 | 50.1 |
| | Republican | Michelle Steel (incumbent) | 157,611 | 49.9 |
| Total votes | Total votes | Total votes | 315,875 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## District 46

The incumbent was Democrat Lou Correa, who had represented the district since 2017 and was re-elected with 61.8% of the vote in 2022.

### Candidates
#### Advanced to general

* Lou Correa (Democratic), incumbent U.S. representative
* David Pan (Republican), University of California, Irvine professor

#### Endorsements
##### Political parties

* California Democratic Party

##### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Equality California
* Humane Society Legislative Fund
* International Franchise Association
* Planned Parenthood Action Fund (post-primary)
* U.S. Chamber of Commerce

##### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* International Brotherhood of Teamsters Joint Council 42
* National Union of Healthcare Workers
* Orange County Employees Association
* Orange County Labor Federation
* UFCW Local 324
* United Association Local 398

##### Organizations

* California College Republicans

##### Political parties

* American Independent Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Lou Correa (D) | $670,662 | $438,796 | $1,754,509 |
| David Pan (R) | $48,303 | $26,416 | $21,886 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Results

California's 46th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Lou Correa (incumbent) | 46,184 | 60.6 |
| | Republican | David Pan | 30,032 | 39.4 |
| Total votes | Total votes | Total votes | 76,216 | 100.0 |
| General election |||||
| | Democratic | Lou Correa (incumbent) | 134,013 | 63.4 |
| | Republican | David Pan | 77,279 | 36.6 |
| Total votes | Total votes | Total votes | 211,292 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 47

The incumbent was Democrat Katie Porter, who was re-elected with 51.7% of the vote in 2022. She opted against seeking re-election, instead choosing to run for the U.S. Senate, ultimately losing her bid.

### Candidates
#### Advanced to general

* Scott Baugh (Republican), former minority leader of the California state assembly, former chair of the Orange County Republican Party, and runner-up for this district in 2022
* Dave Min (Democratic), state senator and candidate for this district in 2018

#### Eliminated in primary

* Terry Crandall (no party preference), Santa Ana College economics professor
* Tom McGrath (no party preference), chemical engineer
* Long Pham (Republican), former member of the Orange County Department of Education Board of Directors and perennial candidate
* Boyd Roberts (Democratic), realtor and perennial candidate
* Bill Smith (no party preference), retired attorney
* Max Ukropina (Republican), businessman and former aide to U.S. Representatives John Campbell and David Valadao
* Joanna Weiss (Democratic), attorney and law professor
* Shariq Zaidi (Democratic), security guard

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Lean D | February 2, 2023 |
| Inside Elections | Tossup | October 18, 2024 |
| Sabato's Crystal Ball | Lean D | November 4, 2024 |
| Elections Daily | Lean R (flip) | November 4, 2024 |
| CNalysis | Lean D | November 4, 2024 |

### Results

California's 47th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Scott Baugh | 57,517 | 32.1 |
| | Democratic | Dave Min | 46,393 | 25.9 |
| | Democratic | Joanna Weiss | 34,802 | 19.4 |
| | Republican | Max Ukropina | 26,585 | 14.8 |
| | Republican | Long Pham | 4,862 | 2.7 |
| | No party preference | Terry Crandall | 2,878 | 1.6 |
| | Democratic | Boyd Roberts | 2,570 | 1.4 |
| | No party preference | Tom McGrath | 1,611 | 0.9 |
| | No party preference | Bill Smith | 1,062 | 0.6 |
| | Democratic | Shariq Zaidi | 788 | 0.4 |
| Total votes | Total votes | Total votes | 179,068 | 100.0 |
| General election |||||
| | Democratic | Dave Min | 181,721 | 51.4 |
| | Republican | Scott Baugh | 171,554 | 48.6 |
| Total votes | Total votes | Total votes | 353,275 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 48

The incumbent was Republican Darrell Issa, who had represented the district since 2021 and was re-elected with 60.4% of the vote in 2022.

### Candidates
#### Advanced to general

* Stephen Houlahan (Democratic), former Santee city councilor and runner-up for this district in 2022
* Darrell Issa (Republican), incumbent U.S. representative

#### Eliminated in primary

* Lucinda Jahn (no party preference), technician and candidate for this district in 2022
* Mathew Rascon (Democratic), security guard and candidate for this district in 2022
* Whitney Shanahan (Democratic), activist
* Mike Simon (Democratic), engineer

### Endorsements
#### Political parties

* California Democratic Party
* San Diego County Democratic Party

#### Organizations

* California Young Democrats
* Fallbrook Democrats
* San Diego Democrats for Equality
Executive branch officials
* Donald Trump, former president of the United States (2017–2021)

#### State officials

* Mike Huckabee, governor of Arkansas (1996–2007)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)
* Kevin Faulconer, former mayor of San Diego (2014–2020)

#### Political parties

* California Republican Party

#### Organizations

* AIPAC
* California College Republicans
* California ProLife Council
* California Rifle and Pistol Association
* Log Cabin Republicans PAC (post-primary)
* National Rifle Association Political Victory Fund
* Riverside County Republican Party

#### Organizations

* National Women's Political Caucus

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Darrell Issa (R) | $919,404 | $440,906 | $1,096,087 |
| Stephen Houlahan (D) | $17,046 | $20,314 | $7,966 |
| Whitney Shanahan (D) | $16,056 | $14,561 | $1,495 |
| Mike Simon (D) | $123,417 | $113,117 | $10,300 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid R | February 2, 2023 |
| Inside Elections | Solid R | March 10, 2023 |
| Sabato's Crystal Ball | Safe R | February 23, 2023 |
| Elections Daily | Safe R | February 5, 2024 |
| CNalysis | Solid R | November 16, 2023 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Darrell Issa (R) | Stephen Houlahan (D) | Undecided |
| SurveyUSA | June 14–20, 2024 | 625 (LV) | ± 4.8% | 56% | 34% | 10% |

### Results

California's 48th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Darrell Issa (incumbent) | 111,510 | 62.4 |
| | Democratic | Stephen Houlahan | 26,601 | 14.9 |
| | Democratic | Whitney Shanahan | 21,819 | 12.2 |
| | Democratic | Mike Simon | 12,950 | 7.2 |
| | Democratic | Matthew Rascon | 3,988 | 2.2 |
| | No party preference | Lucinda Jahn | 1,959 | 1.1 |
| Total votes | Total votes | Total votes | 178,827 | 100.0 |
| General election |||||
| | Republican | Darrell Issa (incumbent) | 213,625 | 59.3 |
| | Democratic | Stephen Houlahan | 146,665 | 40.7 |
| Total votes | Total votes | Total votes | 360,290 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## District 49

The incumbent was Democrat Mike Levin, who was re-elected with 52.6% of the vote in 2022.

### Candidates
#### Advanced to general

* Matt Gunderson (Republican), auto dealer and runner-up for SD-38 in 2022
* Mike Levin (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Sheryl Adams (Republican), automotive marketer
* Kate Monroe (Republican), veteran aid nonprofit CEO
* Margarita Wilkinson (Republican), Entravision senior vice president

### Endorsements
#### U.S. representatives

* Darrell Issa, U.S. representative for California's 48th congressional district (2001−2019, 2021−present)

#### U.S. representatives

* Newt Gingrich, former Speaker of the U.S. House (1995−1999) from Georgia's 6th congressional district (1979−1999)

#### State senators

* Brian Jones, state senator for the 40th district (2018−present)
* Janet Nguyen, state senator for the 36th district (2014−present)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* Log Cabin Republicans PAC (post-primary)

#### Political parties

* California Democratic Party
* San Diego County Democratic Party

#### Organizations

* AIPAC
* Bend the Arc
* Brady PAC
* California Environmental Voters
* California Young Democrats
* Council for a Livable World
* Democratic Majority for Israel
* End Citizens United
* Equality California
* Everytown for Gun Safety Action Fund
* Feminist Majority PAC
* Giffords
* Humane Society Legislative Fund
* J Street PAC
* Jewish Democratic Council of America
* Joint Action Committee for Political Affairs
* League of Conservation Voters
* NARAL Pro-Choice America
* Natural Resources Defense Council
* Orange County Labor Federation
* Planned Parenthood Action Fund
* Population Connection Action Fund
* San Diego Democrats for Equality
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* International Brotherhood of Teamsters Joint Council 42
* National Education Association
* National Union of Healthcare Workers
* Orange County Employees Association
* San Diego & Imperial Counties AFL-CIO
* UFCW Local 324
* United Association Local 398
* United Auto Workers

#### Organizations

* California ProLife Council
* California Republican Assembly

#### Local officials

* Chris Cate, former San Diego city councilor from the 6th district (2014−2022)
* Kevin Faulconer, former mayor of San Diego (2014−2020) and candidate for governor of California in 2021
* Kristin Gaspar, former San Diego County supervisor from the 3rd district (2016−2020)
* Rebecca Jones, mayor of San Marcos
* Scott Sherman, former San Diego city councilor from the 7th district (2012−2020)

#### Organizations

* California College Republicans

#### Political parties

* American Independent Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Mike Levin (D) | $2,429,689 | $1,342,976 | $1,222,164 |
| Sheryl Adams (R) | $241,435 | $133,602 | $107,832 |
| Matt Gunderson (R) | $1,201,102 | $1,000,024 | $201,078 |
| Kate Monroe (R) | $376,573 | $204,994 | $171,578 |
| Margarita Wilkinson (R) | $1,799,386 | $1,313,920 | $487,466 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Lean D | October 15, 2024 |
| Inside Elections | Lean D | October 31, 2024 |
| Sabato's Crystal Ball | Likely D | September 30, 2024 |
| Elections Daily | Lean D | October 10, 2024 |
| CNalysis | Solid D | October 16, 2024 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Mike Levin (D) | Matt Gunderson (R) | Other | Undecided |
| SurveyUSA | October 25–31, 2024 | 574 (LV) | ± 5.0% | 51% | 38% | 3% | 8% |
| 1892 Polling (R) | October 5–8, 2024 | 400 (LV) | ± 4.9% | 46% | 45% | – | 9% |
| SurveyUSA | October 2–6, 2024 | 617 (LV) | ± 4.8% | 53% | 41% | 1% | 5% |
| SurveyUSA | June 5–10, 2024 | 559 (LV) | ± 4.8% | 50% | 40% | – | 10% |
| 1892 Polling (R) | April 9–11, 2024 | 400 (LV) | ± 4.9% | 44% | 42% | – | 14% |
| SurveyUSA | January 9–15, 2024 | 650 (LV) | ± 4.4% | 47% | 34% | – | 20% |
| SurveyUSA | January 9–15, 2024 | 650 (LV) | ± 4.4% | 43% | 12% | 17% | 28% |
Matt Levin vs. Margarita Wilkinson
| Poll source | Date(s) administered | Sample size | Margin of error | Matt Levin (D) | Margarita Wilkinson (R) | Undecided |
| SurveyUSA | January 9–15, 2024 | 650 (LV) | ± 4.4% | 48% | 29% | 23% |

### Results

California's 49th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Mike Levin (incumbent) | 97,275 | 51.0 |
| | Republican | Matt Gunderson | 49,001 | 25.7 |
| | Republican | Margarita Wilkinson | 20,900 | 11.0 |
| | Republican | Kate Monroe | 19,026 | 10.0 |
| | Republican | Sheryl Adams | 4,617 | 2.4 |
| Total votes | Total votes | Total votes | 190,819 | 100.0 |
| General election |||||
| | Democratic | Mike Levin (incumbent) | 197,397 | 52.2 |
| | Republican | Matt Gunderson | 180,950 | 47.8 |
| Total votes | Total votes | Total votes | 378,347 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 50

The incumbent was Democrat Scott Peters, who had represented the district since 2013 and was re-elected with 62.8% of the vote in 2022.

### Candidates
#### Advanced to general

* Peter Bono (Republican), retired U.S. Navy technician
* Scott Peters (Democratic), incumbent U.S. representative

#### Eliminated in primary

* Timothy Bilash (Democratic), obstetrician-gynecologist
* Solomon Moss (Republican), home tiling contractor

### Endorsements
#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)

#### Organizations

* California College Republicans
* California Rifle and Pistol Association (post-primary)

#### Political parties

* California Democratic Party
* San Diego County Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Equality California
* Humane Society Legislative Fund
* International Franchise Association
* J Street PAC
* League of Conservation Voters
* National Organization for Women PAC
* Planned Parenthood Action Fund (post-primary)
* Population Connection Action Fund
* San Diego Democrats for Equality

#### Labor unions

* AFSCME California
* Association of Flight Attendants
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* National Education Association
* San Diego & Imperial Counties AFL-CIO
* United Auto Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Timothy Bilash (D) | $27,181 | $26,506 | $961 |
| Scott Peters (D) | $1,288,282 | $896,445 | $2,125,794 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Scott Peters (D) | Peter Bono (R) | Undecided |
| SurveyUSA | June 24–30, 2024 | 601 (LV) | ± 5.0% | 51% | 33% | 17% |

### Results

California's 50th congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Scott Peters (incumbent) | 97,601 | 57.0 |
| | Republican | Peter Bono | 40,284 | 23.5 |
| | Republican | Solomon Moss | 20,252 | 11.8 |
| | Democratic | Timothy Bilash | 13,106 | 7.7 |
| Total votes | Total votes | Total votes | 171,243 | 100.0 |
| General election |||||
| | Democratic | Scott Peters (incumbent) | 231,836 | 64.3 |
| | Republican | Peter Bono | 128,859 | 35.7 |
| Total votes | Total votes | Total votes | 360,695 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 51

The incumbent was Democrat Sara Jacobs, who had represented the district since 2021 and was re-elected with 61.9% of the vote in 2022.

### Candidates
#### Advanced to general

* Sara Jacobs (Democratic), incumbent U.S. representative
* Bill Wells (Republican), mayor of El Cajon

#### Eliminated in primary

* Stan Caplan (no party preference), businessman and Republican runner-up for this district in 2022
* Hilaire Fuji Shioura (no party preference), former Placentia library trustee and perennial candidate

### Endorsements
#### Political parties

* American Independent Party

#### Political parties

* California Democratic Party
* San Diego County Democratic Party

#### Organizations

* California Environmental Voters
* California Young Democrats
* Council for a Livable World (post-primary)
* Equality California
* Feminist Majority PAC
* Humane Society Legislative Fund
* J Street PAC
* Jewish Democratic Council of America (post-primary)
* Joint Action Committee for Political Affairs
* National Women's Political Caucus
* Natural Resources Defense Council (post-primary)
* Planned Parenthood Action Fund
* Population Connection Action Fund
* San Diego Democrats for Equality
* Sierra Club

#### Labor unions

* AFSCME California
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* California Teachers Association
* National Education Association
* National Union of Healthcare Workers
* San Diego & Imperial Counties AFL-CIO
* SEIU United Healthcare Workers West
* United Auto Workers

#### U.S. representatives

* Michele Bachmann, former U.S. representative from Minnesota's 6th congressional district (2007–2015)
* Brian Bilbray, former U.S. representative from California's 50th congressional district (1995–2001, 2006–2013)
* Darrell Issa, U.S. representative from California's 48th congressional district (2001–2019, 2021–present)

#### Local officials

* Carl DeMaio, former San Diego city councilor (2008–2012)
* Steve Vaus, mayor of Poway (2014–present)

#### Organizations

* California College Republicans
* San Diego County Republican Party
* San Diego East County Chamber of Commerce

#### Political parties

* California Republican Party

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Sara Jacobs (D) | $985,133 | $864,795 | $210,365 |
| Bill Wells (R) | $563,914 | $392,408 | $178,685 |
| Stan Caplan (NPP) | $41,726 | $34,162 | $7,564 |
| Source: Federal Election Commission ||||

### Primary election
#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Stan Caplan (NPP) | Sara Jacobs (D) | Hilaire Shioura (NPP) | Bill Wells (R) | Undecided |
| SurveyUSA | January 26–31, 2024 | 562 (LV) | ± 4.9% | 4% | 48% | 3% | 29% | 16% |

### General election
#### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

#### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Sara Jacobs (D) | Bill Wells (R) | Undecided |
| SurveyUSA | October 23–27, 2024 | 521 (LV) | ± 5.2% | 61% | 25% | 13% |
| SurveyUSA | June 10–14, 2024 | 537 (LV) | ± 4.8% | 54% | 32% | 14% |
| SurveyUSA | January 26–31, 2024 | 562 (LV) | ± 4.9% | 55% | 34% | 11% |
Sara Jacobs vs. Stan Caplan
| Poll source | Date(s) administered | Sample size | Margin of error | Sara Jacobs (D) | Stan Caplan (NPP) | Undecided |
| SurveyUSA | January 26–31, 2024 | 562 (LV) | ± 4.9% | 56% | 24% | 20% |

### Results

California's 51st congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Sara Jacobs (incumbent) | 90,901 | 57.4 |
| | Republican | Bill Wells | 61,923 | 39.1 |
| | No party preference | Stan Caplan | 3,164 | 2.0 |
| | No party preference | Hilaire Fuji Shioura | 2,496 | 1.6 |
| Total votes | Total votes | Total votes | 158,484 | 100.0 |
| General election |||||
| | Democratic | Sara Jacobs (incumbent) | 198,835 | 60.7 |
| | Republican | Bill Wells | 128,749 | 39.3 |
| Total votes | Total votes | Total votes | 327,584 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## District 52

The incumbent was Democrat Juan Vargas, who had represented the district since 2013 and was re-elected with 66.7% of the vote in 2022.

### Candidates
#### Advanced to general

* Justin Lee (Republican), realtor
* Juan Vargas (Democratic), incumbent U.S. representative

### Endorsements
#### Political parties

* California Democratic Party
* San Diego County Democratic Party

#### Organizations

* AIPAC
* California Environmental Voters
* California Young Democrats
* Democratic Majority for Israel
* Equality California
* Humane Society Legislative Fund
* Planned Parenthood Action Fund (post-primary)
* San Diego Democrats for Equality

#### Labor unions

* AFSCME California
* Association of Flight Attendants
* California Federation of Labor
* California Federation of Teachers
* California Professional Firefighters
* National Union of Healthcare Workers
* San Diego & Imperial Counties AFL-CIO
* United Auto Workers

### Fundraising

Campaign finance reports as of February 14, 2024 :
| Candidate | Raised | Spent | Cash on hand |
| Juan Vargas (D) | $458,547 | $495,704 | $182,387 |
| Source: Federal Election Commission ||||

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | February 2, 2023 |
| Inside Elections | Solid D | March 10, 2023 |
| Sabato's Crystal Ball | Safe D | February 23, 2023 |
| Elections Daily | Safe D | February 5, 2024 |
| CNalysis | Solid D | November 16, 2023 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Juan Vargas (D) | Justin Lee (R) | Undecided |
| SurveyUSA | June 20–25, 2024 | 507 (LV) | ± 5.5% | 57% | 25% | 19% |

### Results

California's 52nd congressional district, 2024 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Juan Vargas (incumbent) | 62,511 | 65.0 |
| | Republican | Justin Lee | 33,611 | 35.0 |
| Total votes | Total votes | Total votes | 96,122 | 100.0 |
| General election |||||
| | Democratic | Juan Vargas (incumbent) | 172,217 | 66.3 |
| | Republican | Justin Lee | 87,501 | 33.7 |
| Total votes | Total votes | Total votes | 259,718 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |