The2018 United States Senate election in California took place on November 6, 2018, to elect a member of theUnited States Senate to representCalifornia , concurrently withother elections to the United States Senate,elections to theUnited States House of Representatives , and variousstate andlocal elections .
Under California's non-partisan blanket primary law, all candidates appear on the same ballot, regardless of party. In the primary, voters may vote for any candidate, regardless of their party affiliation. In the California system, the top two finishers — regardless of party — advance to the general election in November, even if a candidate receives a majority of the votes cast in the primary election.Washington andLouisiana have similar "jungle primary " style processes for U.S. Senate elections, as doesMississippi for U.S. Senate special elections.
The candidate filing deadline was March 8, 2018, and the primary election was held on June 5, 2018.[ 1]
Democratic incumbent Dianne Feinstein won re-election in2012 with 63% of the vote, taking the record for the most popular votes in any U.S. Senate election in history, with 7.86 million votes.[ 2] Feinstein, at the time, was the ranking member of the Senate Judiciary Committee. She turned 85 years old in 2018, leading some to speculate that she would retire in January 2019,[ 3] [ 4] as her long-time colleagueBarbara Boxer did inJanuary 2017 . However, Feinstein ran for re-election to her fifth full term, winning 44.2% of the vote in the top-two primary; she faced Democratic challengerKevin de León in the general election, who won 12.1% of the primary vote.[ 5] For the second time since direct elections to the Senate began after the passage of theSeventeenth Amendment in 1913, no Republican appeared on the general election ballot for the U.S. Senate in California. The highest Republican finisher in the primary won only 8.3 percent of the vote, and the 10 Republicans only won 31.2 percent of the vote among them. Briefly, during the early stages of the primary,Patrick Little , aNeo-Nazi running as a Republican polled at 18% which at the time put him in second place and the likely runoff candidate against Feinstein, however, his campaign collapsed after the media reported on his views.
In the general election,Feinstein defeated de León by an eight-point margin, 54% to 46%. This was Feinstein's closest election since1994 , as well as her last run for elected office, as she died in office in September 2023.[ 6]
Candidates
Democratic Party
Advanced to general
Eliminated in primary Adrienne Nicole Edwards, Vice Chairwoman on the HDT Community Development Foundation board[ 11] Pat Harris, attorney[ 12] [ 13] Alison Hartson, national director ofWolf PAC [ 14] [ 15] David Hildebrand, legislative analyst[ 16] [ 17] Herbert G. Peters, retired aerospace engineer and candidate for U.S. Senate in California in 2016[ 11] Douglas Howard Pierce[ 11] Gerald Plummer[ 11] Donnie O. Turner, Air Force veteran[ 11]
Withdrawn
Declined
Republican Party
Declared Arun K. Bhumitra, businessman[ 11] James P. Bradley, businessman[ 26] Jack Crew, bus driver[ 26] Erin Cruz, published author[ 27] Rocky De La Fuente , entrepreneur and perennial candidate[ 28] Jerry Joseph Laws, candidate for the U.S. Senate in 2016[ 26] Patrick Little , neo-Nazi and Holocaust denier[ 29] (denounced by California Republican Party)Kevin Mottus, candidate for the U.S. Senate in 2016[ 11] Mario Nabliba, scientist[ 11] Tom Palzer, activist, retired city planner and candidate for the U.S. Senate in 2016[ 26] Paul Allen Taylor, businessman[ 30]
Withdrawn
Declined
Libertarian Party
Declared Derrick Michael Reid, retired attorney and engineer and candidate for president in 2016[ 44]
Green Party
Declared Michael V. Ziesing (write-in)[ 45]
Peace and Freedom Party
Declared
No party preference
Declared
Withdrawn
Notes ^a b No ballot access: Constitution Party and Socialist Equality Party. Don J. Grundmann (C) and David Moore (SEP) appear on ballot as "No party preference".[ 26]
Primary election
Endorsements Dianne Feinstein (D)
U.S. presidents
U.S. vice presidents
U.S. Senators
U.S. Representatives
Pete Aguilar , U.S. Representative (D-CA-31)Karen Bass , U.S. Representative (D-CA-37)Ami Bera , U.S. Representative (D-CA-7)Julia Brownley , U.S. Representative (D-CA-26)Judy Chu , U.S. Representative (D-CA-27)Salud Carbajal , U.S. Representative (D-CA-24)Jim Costa , U.S. Representative (D-CA-16)Susan Davis , U.S. Representative (D-CA-53)Mark DeSaulnier , U.S. Representative (D-CA-11)John Garamendi , U.S. Representative (D-CA-3)Ted Lieu , U.S. Representative (D-CA-33)[ 63] Alan Lowenthal , U.S. Representative (D-CA-47)Doris Matsui , U.S. Representative (D-CA-6)Grace Napolitano , U.S. Representative (D-CA-32)Jimmy Panetta , U.S. Representative (D-CA-20)Nancy Pelosi , House Minority Leader and U.S. Representative (D-CA-12)[ 64] Scott Peters , U.S. Representative (D-CA-52)Raul Ruiz , U.S. Representative (D-CA-36)Adam Schiff , U.S. Representative (D-CA-28)[ 62] Brad Sherman , U. S. Representative (D-CA-30)[ 65] Jackie Speier , U.S. Representative (D-CA-14)Eric Swalwell , U.S. Representative (D-CA-15)[ 65] Mark Takano , U.S. Representative (D-CA-41)Mike Thompson , U.S. Representative (D-CA-5)Norma Torres , U.S. Representative (D-CA-35)Juan Vargas , U.S. Representative (D-CA-51)Maxine Waters , U.S. Representative (D-CA-43)State officials
Cecilia Aguiar-Curry , California State Assemblymember (D-4)[ 66] Jerry Brown , Governor of California[ 67] Anna Caballero , California State Assemblymember (D-30)[ 66] Susan Talamantes Eggman , California State Assemblymember (D-13)[ 66] Cristina Garcia , California State Assemblymember (D-58)[ 66] Jacqui Irwin , California State Assemblymember (D-44)[ 66] Gavin Newsom , Lieutenant Governor of California[ 62] [ 59] Alex Padilla , California Secretary of State[ 62] Anthony Rendon , California State Assemblyman and speaker of the Assembly (D-63)[ 68] Blanca E. Rubio , California State Assemblymember (D-48)[ 66] Local officials
Organizations
Newspapers
Kevin de León (D)
Individuals
Tom Steyer , billionaire, hedge fund manager, philanthropist, environmentalist, liberal activist, and fundraiser[ 80] U.S. Representatives
State officials
Toni Atkins ,President pro tempore of the California State Senate (D-39)[ 81] Jim Beall , California State Senator (D-15)[ 81] Steve Bradford , California State Senator (D-35)[ 81] Kansen Chu , California State Assemblymember (D-25)[ 81] Dean Florez , former California State Senator[ 84] Jim Frazier , California State Assemblymember (D-11)[ 81] Cathleen Galgiani , California State Senator (D-5)[ 81] Eduardo Garcia , California State Assemblymember (D-56)[ 81] Lorena Gonzalez-Fletcher , California State Assemblymember (D-80)[ 84] Ed Hernandez , California State Senator, candidate forLieutenant Governor of California [ 81] Ben Hueso , California State Senator (D-40)[ 81] Hannah-Beth Jackson , California State Senator (D-19)[ 85] Reggie Jones-Sawyer , California State Assemblymember (D-59)[ 81] Ash Kalra , California State Assemblymember (D-27)[ 81] Ricardo Lara , California State Senator (D-33), candidate forCalifornia Insurance Commissioner [ 81] Kevin McCarty , California State Assemblymember (D-7)[ 84] Mike McGuire , California State Senator (D-2)[ 81] Jose Medina , California State Assemblymember (D-61)[ 81] Holly Mitchell , California State Senator (D-30)[ 81] Bill Monning , California State Senator, Majority Leader (D-17)[ 81] Cindy Montanez , former California State Assemblymember[ 81] Josh Newman , California State Senator (D-29)[ 81] Richard Pan , California State Senator (D-6)[ 81] Anthony Portantino , California State Senator (D-25)[ 81] Eloise Reyes , California State Assemblymember (D-47)[ 81] Miguel Santiago , California State Assemblymember (D-53)[ 81] Henry Stern , California State Senator (D-27)[ 81] Local officials
Mike Bonin , member of theLos Angeles City Council [ 81] Joe Buscaino , member of the Los Angeles City Council[ 81] Sandra Lee Fewer , member of the San Francisco Board of Supervisors[ 86] Monica Garcia,Los Angeles Unified School District Board president[ 81] Robert Garcia , Mayor ofLong Beach [ 81] Jose Huizar , member of the Los Angeles City Council[ 81] Jane Kim , member of theSan Francisco Board of Supervisors [ 86] Aaron Peskin , member of the San Francisco Board of Supervisors[ 86] Curren Price , member of the Los Angeles City Council[ 81] Hillary Ronen , member of the San Francisco Board of Supervisors[ 86] Mary Salas , mayor ofChula Vista [ 81] Norman Yee , member of the San Francisco Board of Supervisors[ 86] Organizations
Pat Harris (D)
Organizations
F.U.N. Progressives Tri-Valley Democratic Club Individuals
David Hildebrand (D)
Local officials
Vinnie Bacon , Vice Mayor of Fremont, Fremont City Council member[ 100] Jovanka Beckles , former Richmond City Council member, candidate for the State Assembly - District 15[ 100] Gayle McLaughlin , former Mayor of Richmond, candidate for Lieutenant Governor[ 101] Porsche Middleton , Citrus Heights Planning Commissioner, candidate for the Citrus Heights City Council[ 100] Noah Phillips , Deputy District Attorney for Sacramento County, candidate for Sacramento County District Attorney[ 100] Individuals
Michael Bracamontes , civil rights attorney, former candidate for California governor[ 100] Stephen Jaffe, employment attorney, candidate for U.S. Congress[ 100] Kevin Murray, professor of politics, Humboldt State University[ 100] Stephen Seager , mental health expert, author, documentary filmmaker[ 100] Organizations
Bernie Sanders Megagroup 2020[ 100] Candidates with a Contract[ 102] Courageous Resistance of Humboldt - Our Revolution[ 100] Feel the Bern Democratic Club of Los Angeles[ 100] Labor Campaign for Single Payer[ 100] Not Me Us - We are the Revolution[ 100] Our Revolution West Marin[ 100] The People's News[ 100] Stanislaus County for Bernie 2020[ 100] Ventura County Activists for Bernie Sanders 2020 #OurRevolution[ 100] Wellstone Progressive Democrats of Sacramento - Our Revolution[ 100] Yolo County Progressives - Our Revolution[ 100] Patrick Little (R)
Politicians
David Duke , white nationalist and former Louisiana State Representative[ 110] John Thompson Parker (PFP)
Fundraising Campaign finance reports as of May 16, 2018 Candidate Total receipts Total disbursements Cash on hand Dianne Feinstein (D) $9,953,612 $5,342,658 $7,035,307 Kevin de León (D) $1,135,538 $441,847 $693,689 Pat Harris (D) $703,982 $650,225 $51,017 Alison Hartson (D) $298,296 $189,652 $108,643 Arun K. Bhumitra (R) $53,668 $40,835 $12,832 David Hildebrand (D) $27,111 $25,816 $1,294 Erin Cruz (R) $26,442 $23,190 $3,251 Douglas Howard Pierce (D) $9,000 $62,392 $11,200 Paul Allen Taylor (R) $9,128 $8,803 $324 Tom Palzer (R) $0 $45 $45 David Moore (SEP) $3,480 $3,480 $0 Source: Federal Election Commission[ 114]
Polling Poll source Date(s) administered Sample size Marginof error James P. Bradley (R) Erin Cruz (R) Pat Harris (D) Rocky DeLa Fuente (R) Kevin de León (D) Dianne Feinstein (D) Alison Hartson (D) Patrick Little (R) Other / Undecided UC Berkeley [ 115] May 22−28, 2018 2,106 ± 3.5% 7% – – – 11% 36% – – 46% [ 116] Emerson College [ 117] May 21–24, 2018 600 ± 4.2% – 5% 6% 4% 6% 38% 4% – 38% [ 118] YouGov [ 119] May 12–24, 2018 1,113 ± 4.0% 6% 2% 2% 4% 11% 36% 1% 1% 37% [ 120] SurveyUSA [ 121] May 21, 2018 678 ± 6.1% 9% 2% 2% 3% 11% 36% 1% 0% 35% [ 122] Public Policy Institute of California [ 123] May 11–20, 2018 901 ± 4.1% – – – – 17% 41% – – 41% [ 124] USC Dornsife /Los Angeles Times [ 125] April 18 – May 18, 2018 517 ± 4.0% 3% 1% 2% 0% 7% 31% 1% 2% 51% [ 126] Gravis Marketing [ 127] May 4–5, 2018 525 ± 4.3% 19% 13% – – 8% 32% 6% – 21%[ 128] SurveyUSA [ 129] April 19–23, 2018 520 ± 5.5% – – – 8% 8% 38% 4% 18% 23%[ 130] UC Berkeley [ 131] April 16–22, 2018 1,738 ± 3.5% 10% – – – 11% 28% – – 49% [ 132] Public Policy Institute of California [ 133] March 4–13, 2018 1,706 ± 3.4% – – – – 16% 42% – – 41% [ 134] Public Policy Institute of California [ 135] January 21–30, 2018 1,705 ± 3.2% – – – – 17% 46% – – 36% [ 136] UC Berkeley [ 137] December 7–16, 2017 672 ± 3.8% – – – – 27% 41% – – 32% [ 138] Public Policy Institute of California [ 139] November 10–19, 2017 1,070 ± 4.3% – – – – 21% 45% – – 34% [ 140] Sextant Strategies & Research [ 141] September 2017 1,197 ± 3.4% – – – – 15% 38% – – 46% [ 142]
Hypothetical polling
with Timothy Charles Kalemkarian, Caren Lancona, John Melendez, and Stephen Schrader
Poll source Date(s) administered Sample size Margin of error Kevin de León (D) Dianne Feinstein (D) Timothy Charles Kalemkarian (R) Caren Lancona (R) Patrick Little (R) John Melendez (D) Stephen Schrader (R) Other / Undecided SurveyUSA [ 143] March 22–25, 2018 517 ± 5.0% 5% 31% 5% 2% 5% 5% 7% 42% [ 144] SurveyUSA [ 145] January 7–9, 2018 506 ± 4.4% 4% 34% 6% 5% 5% 2% 5% 38% [ 146]
with Tom Steyer
Poll source Date(s) administered Sample size Margin of error Kevin de León (D) Dianne Feinstein (D) Timothy Charles Kalemkarian (R) Caren Lancona (R) Patrick Little (R) Tom Steyer (D) Other / Undecided SurveyUSA [ 145] January–9, 2018 506 ± 4.4% 3% 29% 5% 5% 5% 5% 46% [ 147]
with John Cox
Poll source Date(s) administered Sample size Margin of error John Cox (R) Kevin de León (D) Dianne Feinstein (D) Undecided Sextant Strategies & Research [ 148] September 2017 1,197 ± 3.4% 32% 14% 40% 14%
with Xavier Becerra, Kevin Faulconer, Brad Sherman, Eric Swalwell, and Ashley Swearingin
Poll source Date(s) administered Sample size Margin of error Xavier Becerra (D) Kevin de León (D) Kevin Faulconer (R) Brad Sherman (D) Eric Swalwell (D) Ashley Swearingin (R) Undecided Public Policy Polling [ 149] January 17–18, 2017 882 ± 3.3% 21% 4% 18% 11% 5% 13% 28%
Results Primary results by county 10–20%
20–30%
30–40%
40–50%
50–60%
60–70%
Nonpartisan blanket primary results[ 5] Party Candidate Votes % Democratic Dianne Feinstein (incumbent)2,947,035 44.12% Democratic Kevin de León 805,446 12.07% Republican James P. Bradley 556,252 8.34% Republican Arun K. Bhumitra 350,815 5.26% Republican Paul A. Taylor 323,533 4.85% Republican Erin Cruz 267,494 4.01% Republican Tom Palzer 205,183 3.08% Democratic Alison Hartson 147,061 2.21% Republican Rocky De La Fuente 135,278 2.03% Democratic Pat Harris 126,947 1.90% Republican John "Jack" Crew 93,806 1.41% Republican Patrick Little 89,867 1.35% Republican Kevin Mottus 87,646 1.31% Republican Jerry Joseph Laws 67,140 1.01% Libertarian Derrick Michael Reid 59,999 0.90% Democratic Adrienne Nicole Edwards 56,172 0.84% Democratic Douglas Howard Pierce 42,671 0.64% Republican Mario Nabliba 39,209 0.59% Democratic David Hildebrand 30,305 0.45% Democratic Donnie O. Turner 30,101 0.45% Democratic Herbert G. Peters 27,468 0.41% No party preference David Moore 24,614 0.37% No party preference Ling Ling Shi 23,506 0.35% Peace and Freedom John Thompson Parker 22,825 0.34% No party preference Lee Olson 20,393 0.31% Democratic Gerald Plummer 18,234 0.27% No party preference Jason M. Hanania 18,171 0.27% No party preference Don J. Grundmann 15,125 0.23% No party preference Colleen Shea Fernald 13,536 0.20% No party preference Rash Bihari Ghosh 12,557 0.19% No party preference Tim Gildersleeve 8,482 0.13% No party preference Michael Fahmy Girgis 2,986 0.05% Green Michael V. Ziesing (write-in) 842 0.01% No party preference Ursula M. Schilling (write-in) 17 0.00% Democratic Seelam Prabhakar Reddy (write-in) 4 0.00% Total votes 6,670,720 100.00%
Democratic candidates won a combined total of 4,231,444 votes, Republican candidates 2,216,223 votes, and other candidates 223,053 votes.
General election
Debates
Endorsements Dianne Feinstein (D)
Former Executive Branch officials
U.S. Senators
U.S. Representatives
Pete Aguilar , U.S. Representative (D-CA-31)Karen Bass , U.S. Representative (D-CA-37)Ami Bera , U.S. Representative (D-CA-7)Julia Brownley , U.S. Representative (D-CA-26)Salud Carbajal , U.S. Representative (D-CA-24)Judy Chu , U.S. Representative (D-CA-27)Jim Costa , U.S. Representative (D-CA-16)Susan Davis , U.S. Representative (D-CA-53)Mark DeSaulnier , U.S. Representative (D-CA-11)John Garamendi , U.S. Representative (D-CA-3)Ted Lieu , U.S. Representative (D-CA-33)[ 63] Alan Lowenthal , U.S. Representative (D-CA-47)Doris Matsui , U.S. Representative (D-CA-6)Grace Napolitano , U.S. Representative (D-CA-32)Doug Ose , former U.S. Representative and former gubernatorial candidate in 2018 (R-CA)[ 150] Jimmy Panetta , U.S. Representative (D-CA-20)Nancy Pelosi , House Minority Leader and U.S. Representative (D-CA-12)[ 64] Scott Peters , U.S. Representative (D-CA-52)Raul Ruiz , U.S. Representative (D-CA-36)Adam Schiff , U.S. Representative (D-CA-28)[ 62] Brad Sherman , U. S. Representative (D-CA-30)[ 65] Jackie Speier , U.S. Representative (D-CA-14)Eric Swalwell , U.S. Representative (D-CA-15)[ 65] Mark Takano , U.S. Representative (D-CA-41)Mike Thompson , U.S. Representative (D-CA-5)Norma Torres , U.S. Representative (D-CA-35)Juan Vargas , U.S. Representative (D-CA-51)Maxine Waters , U.S. Representative (D-CA-43)State officials
Cecilia Aguiar-Curry , California State Assemblymember (D-4)[ 66] Jerry Brown , Governor of California[ 67] Anna Caballero , California State Assemblymember (D-30)[ 66] Susan Talamantes Eggman , California State Assemblymember (D-13)[ 66] Cristina Garcia , California State Assemblymember (D-58)[ 66] Jacqui Irwin , California State Assemblymember (D-44)[ 66] Gavin Newsom , Lieutenant Governor of California[ 62] [ 59] Alex Padilla , California Secretary of State[ 62] Anthony Rendon , California State Assemblyman and speaker of the Assembly (D-63)[ 68] Blanca E. Rubio , California State Assemblymember (D-48)[ 66] Local officials
Organizations
Newspapers
Kevin de León (D)
Individuals
Tom Steyer , billionaire, hedge fund manager, philanthropist, environmentalist, liberal activist, and fundraiser[ 80] U.S. Representatives
State officials
Toni Atkins ,President pro tempore of the California State Senate (D-39)[ 81] Jim Beall , California State Senator (D-15)[ 81] Steve Bradford , California State Senator (D-35)[ 81] Kansen Chu , California State Assemblymember (D-25)[ 81] Dean Florez , former California State Senator[ 84] Jim Frazier , California State Assemblymember (D-11)[ 81] Cathleen Galgiani , California State Senator (D-5)[ 81] Eduardo Garcia , California State Assemblymember (D-56)[ 81] Lorena Gonzalez-Fletcher , California State Assemblymember (D-80)[ 84] Ed Hernandez , California State Senator, candidate forLieutenant Governor of California [ 81] Ben Hueso , California State Senator (D-40)[ 81] Hannah-Beth Jackson , California State Senator (D-19)[ 85] Reggie Jones-Sawyer , California State Assemblymember (D-59)[ 81] Ash Kalra , California State Assemblymember (D-27)[ 81] Ricardo Lara , California State Senator (D-33), candidate forCalifornia Insurance Commissioner [ 81] Kevin McCarty , California State Assemblymember (D-7)[ 84] Mike McGuire , California State Senator (D-2)[ 81] Jose Medina , California State Assemblymember (D-61)[ 81] Holly Mitchell , California State Senator (D-30)[ 81] Bill Monning , California State Senator, Majority Leader (D-17)[ 81] Cindy Montanez , former California State Assemblymember[ 81] Josh Newman , former California State Senator[ 81] Richard Pan , California State Senator (D-6)[ 81] Anthony Portantino , California State Senator (D-25)[ 81] Eloise Reyes , California State Assemblymember (D-47)[ 81] Miguel Santiago , California State Assemblymember (D-53)[ 81] Henry Stern , California State Senator (D-27)[ 81] Local officials
Mike Bonin , member of theLos Angeles City Council [ 81] Joe Buscaino , member of the Los Angeles City Council[ 81] Sandra Lee Fewer , member of the San Francisco Board of Supervisors[ 86] Monica Garcia,Los Angeles Unified School District Board President[ 81] Robert Garcia , Mayor ofLong Beach [ 81] Jose Huizar , member of the Los Angeles City Council[ 81] Jane Kim , member of theSan Francisco Board of Supervisors [ 86] Aaron Peskin , member of the San Francisco Board of Supervisors[ 86] Curren Price , member of the Los Angeles City Council[ 81] Hillary Ronen , member of the San Francisco Board of Supervisors[ 86] Mary Salas , Mayor ofChula Vista [ 81] Norman Yee , member of the San Francisco Board of Supervisors[ 86] Organizations
Fundraising Campaign finance reports as of October 19, 2018 Candidate Total receipts Total disbursements Cash on hand Dianne Feinstein (D) $21,100,086.64 $17,896,407.61 $4,069,222.18 Kevin de León (D) $1,572,160.70 $1,263,113.97 $309,045.58 Source: Federal Election Commission[ 114]
Predictions Because of California's top-two runoff system, the seat was guaranteed to be won/held by a Democrat since the initial primary produced two Democratic candidates.
Polling Poll source Date(s) administered Sample size Marginof error Dianne Feinstein (D) Kevin de León (D) None Other Undecided Change Research [ 162] November 2–4, 2018 1,108 – 42% 32% – – – Research Co. [ 163] November 1–3, 2018 450 ± 4.6% 47% 28% – – 25% SurveyUSA [ 164] November 1–2, 2018 806 ± 4.7% 50% 36% – – 14% Probolsky Research [ 165] October 25–30, 2018 900 ± 3.3% 41% 35% – – 24% UC Berkeley [ 166] October 19–25, 2018 1,339 ± 4.0% 45% 36% – – 19% YouGov [ 167] October 10–24, 2018 2,178 ± 3.1% 36% 29% 19% – 16% Public Policy Institute of California [ 168] October 12–21, 2018 989 ± 4.2% 43% 27% 23% – 8% Emerson College [ 169] October 17–19, 2018 671 ± 4.1% 41% 23% – – 37% SurveyUSA [ 170] October 12–14, 2018 762 ± 4.9% 40% 26% – – 35% USC Dornsife /Los Angeles Times [ 171] September 17 – October 14, 2018 794 LV ± 4.0% 44% 31% – – 25% 980 RV ± 4.0% 41% 30% – – 29% 1st Tuesday Campaigns [ 172] October 1–3, 2018 1,038 ± 3.0% 43% 30% – – 27% Vox Populi Polling [ 173] September 16–18, 2018 500 ± 4.4% 55% 45% – – – Public Policy Institute of California [ 174] September 9–18, 2018 964 ± 4.8% 40% 29% 23% – 8% Ipsos [ 175] September 5–14, 2018 1,021 ± 4.0% 44% 24% – 17% 15% Probolsky Research (R) [ 176] August 29 – September 2, 2018 900 ± 5.8% 37% 29% – – 34% Public Policy Institute of California [ 177] July 8–17, 2018 1,020 ± 4.3% 46% 24% 20% – 9% SurveyUSA [ 178] June 26–27, 2018 559 ± 5.9% 46% 24% – – 31% USC Dornsife /Los Angeles Times [ 179] June 6–17, 2018 767 ± 4.0% 36% 18% – – 46% Probolsky Research (R) [ 180] April 16–18, 2018 900 ± 3.3% 38% 27% – – 35% USC Dornsife /Los Angeles Times [ 181] October 27 – November 6, 2017 1,296 ± 4.0% 58% 31% 31% 10% – Sextant Strategies & Research [ 182] September 2017 1,554 – 36% 17% 28% – 19%
Hypothetical polling
with Feinstein, de León, and Tom Steyer
Poll source Date(s) administered Sample size Margin of error Kevin de León (D) Dianne Feinstein (D) Tom Steyer (D) Not voting Other USC Dornsife /Los Angeles Times [ 181] October 27 – November 6, 2017 949 ± 4.0% 24% 50% 17% 31% 9%
with Feinstein, de León, and John Cox
Poll source Date(s) administered Sample size Margin of error John Cox (R) Kevin de León (D) Dianne Feinstein (D) Undecided Sextant Strategies & Research [ 183] September 2017 1,197 ± 3.4% 30% 15% 38% 17%
Results The race had anundervote of around 1.3 million votes compared to thegubernatorial election , likely by Republican voters choosing neither candidate. De León won many of the same counties and congressional districts won by Republican gubernatorial nominee John Cox, as many voters may have expressed opposition to the incumbent senator. No county voted for both Feinstein and Cox. Congressional districts39 ,45 , and48 were the only congressional districts that voted for both Feinstein and Cox.[ 184] [ 185]
By county Blue represents counties won by Feinstein.Cyan represents counties won by de León.[ 186]
County Feinstein # Feinstein % de León # de León % Margin # Margin % Total Alameda 318,377 58.38 226,950 41.62 91,427 16.77 545,327 Alpine 267 48.81 280 51.19 -13 -2.38 547 Amador 5,835 41.44 8,244 58.56 -2,409 -17.11 14,079 Butte 32,418 42.92 43,108 57.08 -10,690 -14.15 75,526 Calaveras 7,031 40.44 10,357 59.56 -3,326 -19.13 17,388 Colusa 1,643 35.09 3,039 64.91 -1,396 -29.82 4,682 Contra Costa 222,349 58.34 158,748 41.66 63,601 16.69 381,097 Del Norte 2,590 37.84 4,254 62.16 -1,664 -24.31 6,844 El Dorado 33,772 46.54 38,791 53.46 -5,019 -6.92 72,563 Fresno 103,491 47.68 113,557 52.32 -10,066 -4.64 217,048 Glenn 2,341 34.79 4,388 65.21 -2,047 -30.42 6,729 Humboldt 21,336 44.77 26,319 55.23 -4,983 -10.46 47,655 Imperial 13,121 43.35 17,150 56.65 -4,029 -13.31 30,271 Inyo 2,344 39.89 3,532 60.11 -1,188 -20.22 5,876 Kern 66,628 39.99 99,981 60.01 -33,353 -20.02 166,609 Kings 9,599 37.87 15,748 62.13 -6,149 -24.26 25,347 Lake 8,142 44.11 10,317 55.89 -2,175 -11.78 18,459 Lassen 2,030 29.77 4,788 70.23 -2,758 -40.45 6,818 Los Angeles 1,565,167 57.73 1,146,044 42.27 419,123 15.46 2,711,211 Madera 13,284 41.11 19,032 58.89 -5,748 -17.79 32,316 Marin 80,319 65.32 42,638 34.68 37,681 30.65 122,957 Mariposa 2,749 41.10 3,939 58.90 -1,190 -17.79 6,688 Mendocino 15,113 49.32 15,529 50.68 -416 -1.36 30,642 Merced 23,659 45.81 27,985 54.19 -4,326 -8.38 51,644 Modoc 751 28.69 1,867 71.31 -1,116 -42.63 2,618 Mono 2,001 47.67 2,197 52.33 -196 -4.67 4,198 Monterey 56,320 52.69 50,562 47.31 5,758 5.39 106,882 Napa 27,904 54.51 23,290 45.49 4,614 9.01 51,194 Nevada 22,198 48.14 23,911 51.86 -1,713 -3.72 46,109 Orange 501,678 54.38 420,814 45.62 80,864 8.77 922,492 Placer 66,578 46.46 76,733 53.54 -10,155 -7.09 143,311 Plumas 2,815 38.87 4,428 61.13 -1,613 -22.27 7,243 Riverside 269,567 49.19 278,409 50.81 -8,842 -1.61 547,976 Sacramento 241,571 53.03 213,949 46.97 27,622 6.06 455,520 San Benito 8,607 47.88 9,371 52.12 -764 -4.25 17,978 San Bernardino 233,103 49.97 233,360 50.03 -257 -0.06 466,463 San Diego 526,628 52.92 468,564 47.08 58,064 5.83 995,192 San Francisco 226,167 64.23 125,954 35.77 100,213 28.46 352,121 San Joaquin 79,088 46.13 92,351 53.87 -13,263 -7.74 171,439 San Luis Obispo 53,242 49.63 54,027 50.37 -785 -0.73 107,269 San Mateo 168,679 62.98 99,136 37.02 69,543 25.97 267,815 Santa Barbara 75,274 55.15 61,217 44.85 14,057 10.30 136,491 Santa Clara 339,866 59.78 228,642 40.22 111,224 19.56 568,508 Santa Cruz 64,178 57.51 47,416 42.49 16,762 15.02 111,594 Shasta 19,397 34.87 36,227 65.13 -16,830 -30.26 55,624 Sierra 506 38.51 808 61.49 -302 -22.98 1,314 Siskiyou 5,772 39.26 8,930 60.74 -3,158 -21.48 14,702 Solano 70,174 52.89 62,506 47.11 7,668 5.78 132,680 Sonoma 108,472 56.00 85,220 44.00 23,252 12.00 193,692 Stanislaus 58,375 42.89 77,724 57.11 -19,349 -14.22 136,099 Sutter 10,501 42.57 14,166 57.43 -3,665 -14.86 24,667 Tehama 5,435 32.57 11,253 67.43 -5,818 -34.86 16,688 Trinity 1,746 38.09 2,838 61.91 -1,092 -23.82 4,584 Tulare 33,005 39.88 49,765 60.12 -16,760 -20.25 82,770 Tuolumne 7,783 40.85 11,271 59.15 -3,488 -18.31 19,054 Ventura 137,141 51.32 130,101 48.68 7,040 2.63 267,242 Yolo 35,071 51.86 32,551 48.14 2,520 3.73 67,622 Yuba 6,224 39.17 9,666 60.83 -3,442 -21.66 15,890 Totals 6,019,422 54.16 5,093,942 45.84 925,480 8.33 11,113,364
By congressional district Feinstein won 38 of the 53 congressional districts, with the remaining 15 going to De León, including seven held by Republicans.[ 187]
References ^ "United States Senate election in California, 2018 - Ballotpedia" . RetrievedDecember 23, 2017 .^ Charles Mahtesian (November 26, 2012)."Feinstein's record: 7.3 million votes" .Politico .Politico . RetrievedDecember 16, 2012 . ^ "Essential Politics: State Senate committee moves to assist immigrants, what California's members of Congress are saying about Trump's executive order" .Los Angeles Times .ISSN 0458-3035 . RetrievedJuly 20, 2017 .^ Mehta, Seema (January 17, 2017)."What will Feinstein do? California Democrats await senator's re-election decision to plot their own futures" .Los Angeles Times .ISSN 0458-3035 . RetrievedJuly 20, 2017 . ^a b "Statement of Vote" (PDF) . RetrievedJuly 15, 2018 .^ LeBlanc, Clare; Foran, Paul (September 29, 2023)."Dianne Feinstein, longest-serving female US senator in history, dies at 90 | CNN Politics" .CNN . RetrievedNovember 7, 2023 . {{cite web }}: CS1 maint: multiple names: authors list (link )^ McGreevy, Patrick (September 21, 2017)."With his political clock ticking, state Senate leader Kevin de León keeps mum about what he'll do next" .Los Angeles Times . RetrievedSeptember 23, 2017 . ^ Bowman, Bridget (October 15, 2017)."De Leon to Challenge Feinstein in California Senate Race" . RetrievedJanuary 20, 2018 – via www.RollCall.com. ^ Shelbourne, Mallory (October 15, 2017)."Calif. Dem announces Feinstein challenge" .The Hill . RetrievedJanuary 20, 2018 . ^ Wire, Sarah D. (October 9, 2017)."Sen. Dianne Feinstein says she'll run again: 'There's still so much work left to do' " .Los Angeles Times . RetrievedOctober 9, 2017 . ^a b c d e f g h "Candidate List" . Lavote.net. RetrievedApril 14, 2022 .^ "California 2017 General Election" .www.thegreenpapers.com .^ "Harris, Eugene Patterson - Candidate overview" .FEC.gov .^ Krieg, Gregory." 'Justice Democrats' launch new California Senate candidate" .CNN . ^ Sommer, Will (November 2, 2017)."Progressive group backs new Feinstein challenger" .The Hill . ^ "David Hildebrand for U.S. Senate 2018" .DavidForCalifornia.com . RetrievedJanuary 20, 2018 .^ "Hildebrand, David - Candidate overview" .FEC.gov . RetrievedJanuary 20, 2018 .^ "Brennan, Christopher - Candidate overview" .FEC.gov .^ "Page by Page Report Display for 201702010200050167 (Page 1 of 4)" .docquery.FEC.gov .^ "Candidate Details" .www.FEC.gov . Archived fromthe original on April 21, 2011.^ Krieg, Gregory."2018 California Senate race expected to get more crowded" .CNN . RetrievedOctober 14, 2017 . ^ "New primary challenger to Feinstein emerges" .Politico . September 7, 2017.^ "California politics news feed" . November 2017. RetrievedJanuary 20, 2018 – via Los Angeles Times.^ "California Billionaire Will Not Run in 2018 Elections" .NBCConnecticut.com . January 8, 2018. RetrievedJanuary 20, 2018 .^ "Liberal online news host Cenk Uygur considering Senate run in California" . October 19, 2017.^a b c d e f g h i j "2016 California General Election Official Voter Information Guide" (PDF) . Archived fromthe original (PDF) on September 18, 2016. RetrievedMarch 24, 2018 .^ "Contest/Candidate Proof List, Qualified and on Ballot, Statewide Primary Election 5-June-2018: Voter Nominated Offices United States Senator" (PDF) .Website of the Secretary of State - California . sos.ca.gov. p. 14.^ "Registrar of Voters 2018 Statewide Direct Primary Election" (PDF) .County of San Diego . Archived fromthe original (PDF) on March 11, 2018. RetrievedMarch 10, 2018 .^ "Patrick Little, neo-Nazi Senate candidate, banned from state GOP convention" .San Francisco Chronicle . May 6, 2018.^ "Taylor, Paul Allen MR - Candidate overview" .FEC.gov .^ "Search results" .FEC.gov .^ "Coson, Gary Lynn - Candidate overview" .FEC.gov .^ Estrada, John [@johnestrada] (February 8, 2018)."Join the 49er club! John Estrada U. S. Senate 2018 California Republican P. O. Box 6631 Fresno, California 93703 http://www.gopradio.us $49 help defeat Dianne Feinstein" (Tweet ) – viaTwitter . ^ "Tim Kalemkarian S18 Committee - committee overview" .FEC.gov .^ Wildermuth, John (August 22, 2019)."It's been 30-plus years: Time to run for Congress again?" .San Francisco Chronicle .Archived from the original on August 22, 2019. RetrievedAugust 23, 2019 . ^ "Search results" .FEC.gov .^ "Saavedra, Jazmina - Candidate overview" .FEC.gov . RetrievedJanuary 20, 2018 .^ "Schrader, Stephen James - Candidate overview" .FEC.gov .^ "Kevin Faulconer, San Diego mayor, quietly mulling run for governor" .Politico . Archived fromthe original on November 7, 2017. RetrievedJanuary 20, 2018 .^ "How California lawmakers have tried and failed to fix the state's housing crisis" . June 30, 2017. RetrievedJanuary 20, 2018 – via Los Angeles Times.^ Manchester, Julia (July 16, 2017)."Caitlyn Jenner weighs run for Senate" .The Hill . RetrievedJuly 16, 2017 . ^ Washington, Arlene (March 12, 2017)."Arnold Schwarzenegger shoots down US Senate run" .AOL . RetrievedMarch 13, 2017 . ^ Mehta, Seema (November 2, 2017)."Republican Ashley Swearengin says she won't run for governor or U.S. Senate in 2018" .Los Angeles Times . ^ "Laguna Beach Local News Laguna Local to Make a Bid for the Senate" . Laguna Beach Local News. January 18, 2018. RetrievedApril 4, 2018 .^a b "Certified List of Write-In Candidates for the June 5, 2018, Statewide Direct Primary Election" (PDF) . State of California Secretary of State. May 25, 2018.^ "Search results" .FEC.gov .^ "Candidates for Public Office" . Constitutionpartyofcalifornia.org. Archived fromthe original on March 28, 2018. RetrievedApril 4, 2018 .^ "Socialist Equality Party announces California candidates in midterm elections" . Wsws.org. April 3, 2018. RetrievedApril 4, 2018 .^ "Olson, Lee W - Candidate overview" .FEC.gov .^ "Shi, Ling Ling - Candidate overview" .FEC.gov .^ "Carroll, Jerry Leon - Candidate overview" .FEC.gov .^ "Michael DR" .fec.gov .[permanent dead link ] ^ "Hodge, Charles Junior - Candidate overview" .FEC.gov .^ "Mead, Richard Thomas - Candidate overview" .FEC.gov .^ "Roberts, Clifton - Candidate overview" .FEC.gov .^ Kasarda, Bob (October 23, 2016)."Vegan in the Region: The Humane Party" .nwitimes.com . ^a b Carney, Jordain (May 4, 2018)."Obama endorses Feinstein amid challenge from left" .The Hill . RetrievedMay 4, 2018 . ^a b "Biden endorses Feinstein's re-election bid: 'She's tenacious. She's accomplished' " .The Hill . March 29, 2018. RetrievedApril 4, 2018 .^a b c d e f "California's old guard Democrats under siege" .Politico . October 10, 2017. RetrievedJanuary 20, 2018 .^a b Marinucci, Carla (September 14, 2017)."Senator Kamala Harris, darling of progressives, says she'd support a Feinstein re-election bid '100 percent' " .Politico . RetrievedSeptember 15, 2017 . ^a b Eric Bradner."#2020Vision: Harris backs Feinstein" .CNN . RetrievedJanuary 20, 2018 . ^a b c d e f g h i j "Dianne Feinstein, 84, is seeking another Senate term. Who might challenge her?" .DailyNews.com . October 9, 2017. RetrievedJanuary 20, 2018 .^a b c d Wire, Sarah D. (October 15, 2017)."Why a new progressive congressman has been pushing for a Democrat to challenge Feinstein" .Los Angeles Times . ^a b "Nancy Pelosi endorses Dianne Feinstein for re-election to Senate, heading off possible primary challengers" .Fox News . October 31, 2017.^a b c d O'Keefe, Ed (October 9, 2017)."Dianne Feinstein, oldest U.S. senator, announces re-election bid" .The Washington Post . RetrievedApril 4, 2018 . ^a b c d e f g h i j k l "California politics news feed" .Los Angeles Times . November 2017.^a b "Gov. Jerry Brown endorses Sen. Dianne Feinstein" .Los Angeles Times . April 10, 2018. RetrievedApril 18, 2018 .^a b "Bad news comes in bunches for Kevin de León: Key lawmaker backs Feinstein" . June 12, 2018. RetrievedSeptember 4, 2018 .^a b c d e f g h i j "California politics news feed" .Los Angeles Times . November 2017.^a b Mehta, Seema (November 2017)."Los Angeles Times" .Los Angeles Times . RetrievedJanuary 20, 2018 . ^a b Cadelago, Christopher (October 20, 2017)."Steinberg chooses Feinstein in 'difficult' decision" .The Sacramento Bee . ^a b "Emily's List Endorses Nine Democratic Women Senators for Re-Election in 2018" .Emily's List . February 10, 2017. RetrievedFebruary 16, 2017 .^a b "Equality California Endorses U.S. Senator Dianne Feinstein in 2018 Reelection Race" .www.eqca.org . March 27, 2018.^a b "HRC Endorses California Senator Dianne Feinstein for re-election" .Human Rights Campaign . April 18, 2018. Archived fromthe original on April 22, 2018. RetrievedApril 19, 2018 .^a b Palmer Report (February 25, 2018)."Palmer Report endorses Dianne Feinstein in the Democratic primary. She's spent decades skillfully using her seat to move America to the left. Her primary opponent is well intentioned, but purist progressive foot stompers rarely deliver actual progress for the left" . Twitter.com. RetrievedApril 4, 2018 . ^a b "Dianne Feinstein" .Project100.org . Project100Women.org. Archived fromthe original on December 1, 2017. RetrievedNovember 18, 2017 .^a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al "Endorsements" . Archived fromthe original on June 15, 2018. RetrievedApril 27, 2018 .^a b "Reelect Sen. Dianne Feinstein" .Los Angeles Times . May 4, 2018. RetrievedMay 4, 2018 .^a b "Editorial: Chronicle recommends Dianne Feinstein for U.S. Senate" .San Francisco Chronicle . April 18, 2018. RetrievedApril 19, 2018 .^a b "Billionaire Democratic activist Tom Steyer endorses Kevin de Leon in his insurgent bid against Sen. Dianne Feinstein" .Los Angeles Times . April 18, 2018. RetrievedApril 19, 2018 .^a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl "Endorsements" .Kevin de Leon for Senate . Archived fromthe original on April 18, 2018. RetrievedApril 13, 2018 .^a b De Leon, Kevin (October 15, 2017)."Rep. Jimmy Gomez Endorses Kevin de León for U.S. Senate" (PDF) .Los Angeles Times . ^a b "Kevin de León announces run against Dianne Feinstein, setting up Democratic clash in Senate race" .The Mercury News . October 15, 2017.^a b c d e f g h Mehta, Seema; Mason, Melanie (October 15, 2017)."California Senate leader Kevin de León announces he will challenge Sen. Dianne Feinstein" .Los Angeles Times . ^a b Roberts, Jerry."Newsmakers With Jerry Roberts | Santa Barbara, California" .Newsmakers With Jerry Roberts . Santa Barbara, California. Archived fromthe original on October 16, 2017. RetrievedOctober 16, 2017 . ^a b c d e f g h i j "4 SF supervisors back de Leon against Feinstein in U.S. Senate race" .San Francisco Chronicle . November 10, 2017.^a b "Armenian Committee endorses Kevin de León for U.S. Senate" . January 9, 2018. RetrievedJanuary 9, 2018 .^a b Ford, Mary Kelly (November 8, 2017)."Cal Berkeley Democrats endorses Delaine Eastin for California governor, Kevin de León for US Senate" .The Daily Californian . RetrievedNovember 10, 2017 . ^a b Tolan, Casey (July 14, 2018)."California Democratic Party endorses De León for Senate, in rebuke for Feinstein" .Mercury News . RetrievedJuly 14, 2018 . ^a b "Gavin Newsom, Kevin de León win backing of major California labor group" .San Francisco Chronicle . April 17, 2018.^a b c d Mehta, Seema (February 14, 2018)."Kevin de León boosted by back-to-back union endorsements in Senate bid against Sen. Dianne Feinstein" .Los Angeles Times . RetrievedFebruary 15, 2018 . ^a b "Climate Hawks Vote Surveys California Members: Kevin de Leon or Dianne Feinstein?" .Climate Hawks Vote . October 19, 2017. RetrievedNovember 3, 2017 .^a b "Democracy for America : Democracy for America backs Kevin de León in California U.S. Senate race" .www.democracyforamerica.com .^a b "Joint Council 42 Endorses Kevin de Leon for U.S. Senate Seat" . RetrievedMarch 9, 2018 .^a b "UFCW Western States Council Endorses Kevin De Leon for U.S. Senate" . February 22, 2018. RetrievedMarch 9, 2018 .^ Martin, Abby [@AbbyMartin] (May 19, 2018)."California voters have an open primary June 5th but still need to register by Monday. I'm excited to vote for progressive @HartsonForCA to replace Feinstein, socialist @GloriaLaRiva for Governor, @peaceandfreedom's Kevin Akin for Treasurer https://t.co/2bpLD0pSqs" (Tweet ).Archived from the original on December 5, 2020. RetrievedFebruary 22, 2022 – viaTwitter .^ Prins, Nomi [@nomiprins] (April 12, 2018)."Alison @HartsonForCA is the real deal. Not politics as usual, not co-opted by special interests and corporations, but dedicated to using public service to level the economic playing field for all Californians and Americans. https://t.co/XCucX6tUJa" (Tweet ). RetrievedFebruary 22, 2022 – viaTwitter .^ "Justice Democrats Candidates" .now.justicedemocrats.com . Archived fromthe original on June 27, 2018. RetrievedNovember 2, 2017 .^ The Young Turks [@TheYoungTurks] (November 6, 2017)."Who Will Alison Hartson Represent?: https://t.co/rJNHTB1mSV via @YouTube" (Tweet ). RetrievedFebruary 22, 2022 – viaTwitter .^a b c d e f g h i j k l m n o p q r s "Endorsements" .davidforcalifornia.com . Archived fromthe original on April 14, 2018. RetrievedApril 13, 2018 .^ "Lt. Governor Candidate Gayle McLaughlin Announces 2018 Endorsements" .HighlandNews.net . RetrievedJanuary 20, 2018 .^ "California - CWAC" .candidateswithacontract.com .^ "James Bradley Is Endorsed By Carl DeMaio For US Senate" .KOGO (AM) . Archived fromthe original on May 25, 2018. RetrievedMay 25, 2018 .^ "Endorsements" . Erin Cruz for US Senate. Archived fromthe original on March 21, 2018. RetrievedApril 4, 2018 .^a b c d e f "Endorsements" .Erin Cruz for US Senate . Archived fromthe original on March 21, 2018. RetrievedMarch 20, 2018 .^ "Erin Cruz For U.S. Senate - CA on Facebook" .Facebook .^ "Lets Make California Golden Again! #FireFeinstein" .www.crowdpac.com . Archived fromthe original on April 8, 2018. RetrievedApril 8, 2018 .^ Cruz, Erin [@RealErinCruz] (May 3, 2018)."The news is in! We were officially endorsed by the AIP. The American Independent Party. As was our own @POTUS! https://t.co/JyhoHm11Co" (Tweet ).Archived from the original on November 19, 2020. RetrievedFebruary 22, 2022 – viaTwitter . ^ #CrushCorruption Endorsement Speech, #MAGA . The Erin Cruz Show. March 5, 2018.Archived from the original on January 5, 2021. RetrievedFebruary 22, 2022 – viaYouTube .^ "I've Been Busy" .wordpress.com . April 22, 2018.^ "Derrick Michael Reid on Twitter" .^ 2018 LPC Convention Day 2 .Libertarian Party of California . April 29, 2018.Archived from the original on January 24, 2021. RetrievedFebruary 22, 2022 – viaYouTube .^ Richard, Bob."Election 2018: Greens Endorse Four Statewide Peace and Freedom Candidates - Peace and Freedom Party" .www.peaceandfreedom.org . Archived fromthe original on April 19, 2018. RetrievedApril 19, 2018 . ^a b "Campaign finance data" . RetrievedApril 23, 2018 .^ UC Berkeley ^ Paul Taylor (R) 4%, Other Republicans 9%, Other Democrats 6%, All other candidates 2%, Undecided 25% ^ Emerson College Archived June 7, 2018, at theWayback Machine ^ Other 6%, Undecided 32% ^ YouGov ^ Paul Taylor (R) with 2%; Adrienne Nicole Edwards (D), David Hildebrand (D), Herbert Peters (D), Douglas Howard Pierce (D), Arun Bhumitra (R), Jack Crew (R), Kevin Mottus (R), Mario Nabliba (R), Tom Palzer (R), Derrick Michael Reid (L), Ling Ling Shi (NPP), none of the above with 1%; all other candidates 0%; Undecided with 23% ^ SurveyUSA ^ Arun Bhumitra (R) 4%; Jack Crew (R) 3%; Adrienne Nicole Edwards (D), Don J. Grundmann (C), Kevin Mottus (R), Tom Palzer (R), Douglas Howard Pierce (D), Derrick Michael Reid (L), and Paul Taylor (R) with 1%; Colleen Shea Fernald (NPP), Rash Ghosh (NPP), Tim Gildersleeve (NPP), Michael Fahmy Girgis (NPP), Jason Hanania (NPP), David Hildebrand (D), Jerry Laws (R), David Moore (SEP), Mario Nabliba (R), Lee W. Olson (NPP), John Thompson Parker (PFP), Herbert Peters (D), Gerald Plummer (D), Ling Ling Shi (NPP), Donnie Turner (D) with 0%; Undecided with 21% ^ Public Policy Institute of California ^ Other with 5%, Undecided with 36% ^ USC Dornsife/Los Angeles Times ^ Herbert Peters (D), Douglas Howard Pierce (D), Donnie Turner (D), Derrick Michael Reid (L), John Thompson Parker (PFP), Arun Bhumitra (R), Jerry Laws (R), Mario Nabliba (R), Paul Taylor (R), and David Moore (SEP) with 1%; Adrienne Nicole Edwards (D), David Hildebrand (D), Gerald Plummer (D), Jack Crew (R), Kevin Mottus (R), Tom Palzer (R), Colleen Shea Fernald (NPP), Rash Ghosh (NPP), Tim Gildersleeve (NPP), Michael Fahmy Girgis (NPP), Don J. Grundmann (C), Jason Hanania (NPP), Lee W. Olson (NPP), and Ling Ling Shi (NPP) with 0%; Other 0%; Not voting 0%; Undecided with 41% ^ Gravis Marketing ^ John Melendez* (D) 3%, David Hildebrand (D) 2%, Undecided 16%. *Withdrawn ^ SurveyUSA ^ John Melendez* (D) 4%, Other 2%, Undecided 17%. *Withdrawn. ^ UC Berkeley ^ Other Republicans 8%, Other non-Republicans 6%, Undecided 35% ^ Public Policy Institute of California ^ Other with 2, Undecided with 39% ^ Public Policy Institute of California ^ Other with 3%, Undecided with 33% ^ UC Berkeley ^ Other/Undecided with 32% ^ Public Policy Institute of California ^ Other with 1%, Undecided with 33% ^ Sextant Strategies & Research Archived November 7, 2017, at theWayback Machine ^ Not voting with 29%, Undecided with 17% ^ SurveyUSA ^ Alison Hartson (D) with 3%David Hildebrand (D) 2%; Donald Adams (R), Jerry Leon Carroll (NPP), Pat Harris (D), Richard Mead (NPP), Douglas Howard Pierce (D), Steve Stokes (D), and Michael Ziesing (G, write-in) with 1%; Clifton Roberts (H) 0%; Other with 1%; Undecided with 29% ^a b SurveyUSA ^ Alison Hartson (D) with 3%; Pat Harris (D), David Hildebrand (D), Clifton Roberts (H), Steve Stokes (D), and Michael Ziesing (G, write-in) with 1%; Donald Adams (R), Jerry Leon Carroll (NPP), Michael Eisen (NPP), Tim Gildersleeve (NPP), Charles Junior Hodge (NPP), Richard Mead (NPP), and Douglas Howard Pierce with 0%; Undecided with 30% ^ Stephen Schrader (R) 4%; Pat Harris (D), Alison Hartson (D), John Melendez (D), and Michael Ziesing (G, write-in) with 2%; David Hildebrand (D) and Steve Stokes (D) with 1%; Donald Adams (R), Jery Leon Carroll (NPP), Michael Eisen (NPP), Tim Gildersleeve, Charles Junior Hodge (NPP), Richard Mead (NPP), Douglas Howard Pierce (D), and Clifton Roberts (H) with 0%; Undecided with 30% ^ Sextant Strategies & Research Archived November 7, 2017, at theWayback Machine ^ Public Policy Polling ^ Hart, Angela (February 26, 2018)."Republican drops out of race for California governor" . Sacbee.com. RetrievedApril 4, 2018 . ^ "2018 Senate Endorsees" .JStreetPAC . Archived fromthe original on June 16, 2018. RetrievedAugust 1, 2018 .^ "Federal Endorsements by the NOW PAC | National Organization for Women Political Action Committees" .nowpac.org . August 23, 2017. Archived fromthe original on April 26, 2019. RetrievedAugust 1, 2018 .^ "California Democratic Party abandons incumbent Feinstein, endorses opponent" .NBC News . July 15, 2018. RetrievedSeptember 4, 2018 .^ "2018 Senate Race Ratings" .The Cook Political Report . RetrievedOctober 11, 2017 .^ "2018 Senate Ratings" .The Rothenberg Political Report . RetrievedOctober 11, 2017 .^ "2018 Crystal Ball Senate race ratings" .Sabato's Crystal Ball . RetrievedOctober 11, 2017 .^ "Daily Kos Elections 2018 race ratings" .Daily Kos . June 5, 2018.^ "2018 Senate Power Rankings" .Fox News . RetrievedJuly 10, 2018 .^ "Key Races: Senate" . RetrievedJuly 15, 2018 .^ "Battle for the Senate 2018" . RetrievedJuly 15, 2018 .^ Silver, Nate."California - 2018 Senate Forecast" .FiveThirtyEight . Archived fromthe original on September 13, 2018. RetrievedOctober 20, 2018 . ^ Change Research ^ Research Co. ^ SurveyUSA ^ Probolsky Research ^ UC Berkeley ^ YouGov [permanent dead link ] ^ Public Policy Institute of California ^ Emerson College ^ SurveyUSA ^ USC Dornsife/Los Angeles Times ^ 1st Tuesday Campaigns ^ Vox Populi Polling ^ Public Policy Institute of California ^ Ipsos Archived September 20, 2018, at theWayback Machine ^ Probolsky Research (R) ^ Public Policy Institute of California ^ SurveyUSA ^ USC Dornsife/Los Angeles Times ^ Probolsky Research (R) ^a b USC Dornsife/Los Angeles Times ^ Sextant Strategies & Research Archived November 7, 2017, at theWayback Machine ^ Sextant Strategies & Research Archived November 7, 2017, at theWayback Machine ^ "Supplement to the Statement of Vote - Counties by Congressional Districts for United States Senator" (PDF) .State of California Secretary of State .^ "Supplement to the Statement of Vote - Counties by Congressional Districts for Governor" (PDF) .State of California Secretary of State .^ Padilla, Alex (December 14, 2018)."United States Senator by County" (PDF) .Secretary of State of California .Archived (PDF) from the original on September 8, 2025. RetrievedOctober 4, 2025 .^ "Counties by Congressional Districts for United States Senator" (PDF) . November 6, 2018.Archived (PDF) from the original on December 19, 2024. RetrievedJanuary 27, 2025 .
External links Official campaign websites
U.S. Senate U.S. House (election ratings ) Governors Attorneys general State legislatures Mayors Alexandria, VA Anaheim, CA Anchorage, AK Auburn, AL Austin, TX Burlington, VT Chula Vista, CA Columbus, GA Fairfax, VA Fort Lauderdale, FL Franklin, VA Irvine, CA Lexington, KY Little Rock, AR Long Beach, CA Louisville, KY Lubbock, TX Nashville, TN (special) Newark, NJ Newport News, VA Oakland, CA Oklahoma City, OK Phoenix, AZ (special) Providence, RI Radford, VA Reno, NV San Bernardino, CA San Francisco, CA (special) San Jose, CA Santa Ana, CA Sioux Falls, SD Tallahassee, FL Virginia Beach, VA (special) Washington, DC Local Anchorage,AK Champaign County,IL Cook County,IL Cuyahoga County,OH El Paso,TX El Paso County,CO Jackson County,MO Jefferson County,MO Los Angeles County,CA Macomb County,MI Orange County,CA Orange County,FL San Diego,CA San Francisco,CA St. Charles County,MO St. Louis County,MO Wayne County,MI Statewide Ballot measures Related