2018 United States Senate election in California explained

Election Name:2018 United States Senate election in California
Country:California
Type:presidential
Ongoing:no
Previous Election:2012 United States Senate election in California
Previous Year:2012
Next Election:2024 United States Senate election in California
Next Year:2024
Election Date:November 6, 2018
Turnout:56.42%
Image1:File:DianneFeinstein2018.jpg
Candidate1:Dianne Feinstein
Party1:Democratic Party (United States)
Popular Vote1:6,019,422
Percentage1:54.16%
Candidate2:Kevin de León
Party2:Democratic Party (United States)
Popular Vote2:5,093,942
Percentage2:45.84%
Map Size:300px
U.S. Senator
Before Election:Dianne Feinstein
Before Party:Democratic Party (United States)
After Election:Dianne Feinstein
After Party:Democratic Party (United States)

The 2018 United States Senate election in California took place on November 6, 2018, to elect a member of the United States Senate to represent California, concurrently with other elections to the United States Senate, elections to the United States House of Representatives, and various state and local 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 and Louisiana have similar "jungle primary" style processes for U.S. Senate elections, as does Mississippi 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 in 2012 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 colleague Barbara Boxer did in January 2017. However, Feinstein ran for reelection to her fifth full term, winning 44.2% of the vote in the top-two primary; she faced Democratic challenger Kevin de León in the general election, who won 12.1% of the primary vote. For the second time since direct elections to the Senate began after the passage of the Seventeenth 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.

In the general election, Feinstein defeated de León by an eight-point margin, 54% to 46%. This was Feinstein's closest election since 1994, as well as her last run for elected office, as she died in office in September 2023.[5]

Candidates

Democratic Party

Advanced to general

Eliminated in primary

Withdrawn

Declined

Republican Party

Declared

Withdrawn

Declined

Libertarian Party

Declared

Green Party

Declared

Peace and Freedom Party

Declared

No party preference

Declared

Withdrawn

Notes

Primary election

Fundraising

Campaign finance reports as of May 16, 2018
CandidateTotal receiptsTotal disbursementsCash 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[56]

Polling

Poll sourceDate(s)
administered
Sample
size
Margin
James P.
Bradley
(R)
Erin
Cruz
(R)
Pat
Harris
(D)
Rocky De

(R)
Kevin
de León
(D)
Dianne
Feinstein
(D)
Alison
Hartson
(D)
Patrick
Little
(R)
Other /
Undecided
UC Berkeley[57] May 22−28, 20182,106± 3.5%7% align=center11% align=center36% align=center46%[58]
Emerson College[59] May 21–24, 2018600± 4.2%5% align=center6%4% align=center6% align=center38%4% align=center38%[60]
YouGov[61] May 12–24, 20181,113± 4.0%6%2%2%4% align=center11% align=center36%1%1% align=center37%[62]
SurveyUSA[63] May 21, 2018678± 6.1%9%2%2%3% align=center11% align=center36%1%0% align=center35%[64]
Public Policy Institute of California[65] May 11–20, 2018901± 4.1% align=center17% align=center41% align=center41%[66]
USC Dornsife/Los Angeles Times[67] April 18 – May 18, 2018517± 4.0%3%1%2%0% align=center7% align=center31%1%2% align=center51%[68]
Gravis Marketing[69] May 4–5, 2018525± 4.3% align=center19%13%8% align=center32%6%21%[70]
SurveyUSA[71] April 19–23, 2018520± 5.5%8%8% align=center38%4% align=center18%23%[72]
UC Berkeley[73] April 16–22, 20181,738± 3.5%10% align=center11% align=center28% align=center49%[74]
Public Policy Institute of California[75] March 4–13, 20181,706± 3.4% align=center16% align=center42% align=center41%[76]
Public Policy Institute of California[77] January 21–30, 20181,705± 3.2% align=center17% align=center46% align=center36%[78]
UC Berkeley[79] December 7–16, 2017672± 3.8% align=center27% align=center41% align=center32%[80]
Public Policy Institute of California[81] November 10–19, 20171,070± 4.3% align=center21% align=center45% align=center34%[82]
Sextant Strategies & Research[83] September 20171,197± 3.4% align=center15% align=center38%align=center46%[84]
with Timothy Charles Kalemkarian, Caren Lancona, John Melendez, and Stephen Schrader
Poll sourceDate(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[85] March 22–25, 2018517± 5.0%5% align=center31%5%2%5%5% align=center7% align=center42%[86]
SurveyUSA[87] January 7–9, 2018506± 4.4%4% align=center34% align=center6%5%5%2%5% align=center38%[88]

with Tom Steyer

with John Cox

with Xavier Becerra, Kevin Faulconer, Brad Sherman, Eric Swalwell, and Ashley Swearingin

Results

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

Fundraising

Campaign finance reports as of October 19, 2018
CandidateTotal receiptsTotal disbursementsCash 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

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.

SourceRankingAs of
The Cook Political Report[92] September 28, 2018
Inside Elections[93] November 14, 2017
Sabato's Crystal Ball[94] November 15, 2017
Daily Kos[95] April 9, 2018
Fox News[96] [97] July 9, 2018
CNN[98] July 12, 2018
RealClearPolitics[99] June 27, 2018
FiveThirtyEight[100] October 20, 2018

Polling

Poll sourceDate(s)
administered
Sample
size
Margin
Dianne
Feinstein (D)
Kevin
de León (D)
NoneOtherUndecided
Change Research[101] November 2–4, 20181,108 align=center42%32%
Research Co.[102] November 1–3, 2018450± 4.6% align=center47%28%25%
SurveyUSA[103] November 1–2, 2018806± 4.7% align=center50%36%14%
Probolsky Research[104] October 25–30, 2018900± 3.3% align=center41%35%24%
UC Berkeley[105] October 19–25, 20181,339± 4.0% align=center45%36%19%
YouGov[106] October 10–24, 20182,178± 3.1% align=center36%29%19%16%
Public Policy Institute of California[107] October 12–21, 2018989± 4.2% align=center43%27%23%8%
Emerson College[108] October 17–19, 2018671± 4.1% align=center41%23%37%
SurveyUSA[109] October 12–14, 2018762± 4.9% align=center40%26%35%
USC Dornsife/Los Angeles Times[110] September 17 – October 14, 2018794 LV± 4.0% align=center44%31%25%
980 RV± 4.0% align=center41%30%29%
1st Tuesday Campaigns[111] October 1–3, 20181,038± 3.0% align=center43%30%27%
Vox Populi Polling[112] September 16–18, 2018500± 4.4% align=center55%45%
Public Policy Institute of California[113] September 9–18, 2018964± 4.8% align=center40%29%23%8%
Ipsos[114] September 5–14, 20181,021± 4.0% align=center44%24%17%15%
Probolsky Research (R)[115] August 29 – September 2, 2018900± 5.8% align=center37%29%34%
Public Policy Institute of California[116] July 8–17, 20181,020± 4.3% align=center46%24%20%9%
SurveyUSA[117] June 26–27, 2018559± 5.9% align=center46%24%31%
USC Dornsife/Los Angeles Times[118] June 6–17, 2018767± 4.0% align=center36%18% align=center46%
Probolsky Research (R)[119] April 16–18, 2018900± 3.3% align=center38%27%35%
USC Dornsife/Los Angeles Times[120] October 27 – November 6, 20171,296± 4.0% align=center58%31%31%10%
Sextant Strategies & Research[121] September 20171,554 align=center36%17%28%19%

with Feinstein, de León, and Tom Steyer

with Feinstein, de León, and John Cox

Results

The race had an undervote of around 1.3 million votes compared to the gubernatorial 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 districts 39, 45, and 48 were the only congressional districts that voted for both Feinstein and Cox.[123] [124]

Results by county

Results by county.

Blue represents counties won by Feinstein. Cyan represents counties won by de León.[125]
County Feinstein # Feinstein % de León # de León % Total
318,377 58.4 226,950 41.6 545,327
267 48.8 280 51.2 547
5,835 41.4 8,244 58.6 14,079
32,418 42.9 43,108 57.1 75,526
7,031 40.4 10,357 59.6 17,388
1,643 35.1 3,039 64.9 4,682
222,349 58.3 158,748 41.7 381,097
2,590 37.8 4,254 62.2 6,844
33,772 46.5 38,791 53.5 72,563
103,491 47.7 113,557 52.3 217,048
2,341 34.8 4,388 65.2 6,729
21,336 44.8 26,319 55.2 47,655
13,121 43.3 17,150 56.7 30,271
2,344 39.9 3,532 60.1 5,876
66,628 40.0 99,981 60.0 166,609
9,599 37.9 15,748 62.1 25,347
8,142 44.1 10,317 55.9 18,459
2,030 29.8 4,788 70.2 6,818
1,565,167 57.7 1,146,044 42.3 2,711,211
13,284 41.1 19,032 58.9 32,316
80,319 65.3 42,638 34.7 122,957
2,749 41.1 3,939 58.9 6,688
15,113 49.3 15,529 50.7 30,642
23,659 45.8 27,985 54.2 51,644
751 28.7 1,867 71.3 2,618
2,001 47.7 2,197 52.3 4,198
56,320 52.7 50,562 47.3 106,882
27,904 54.5 23,290 45.5 51,194
22,198 48.1 23,911 51.9 46,109
501,678 54.4 420,814 45.6 922,492
66,578 46.5 76,733 53.5 143,311
2,815 38.9 4,428 61.1 7,243
269,567 49.2 278,409 50.8 547,976
241,571 53.0 213,949 47.0 455,520
8,607 47.9 9,371 52.1 17,978
233,103 50.0 233,360 50.0 466,463
526,628 52.9 468,564 47.1 995,192
226,167 64.2 125,954 35.8 352,121
79,088 46.1 92,351 53.9 171,439
53,242 49.6 54,027 50.4 107,269
168,679 63.0 99,136 37.0 267,815
75,274 55.1 61,217 44.9 136,491
339,866 59.8 228,642 40.2 568,508
64,178 57.5 47,416 42.5 111,594
19,397 34.9 36,227 65.1 55,624
506 38.5 808 61.5 1,314
5,772 39.3 8,930 60.7 14,702
70,174 52.9 62,506 47.1 132,680
108,472 56.0 85,220 44.0 193,692
58,375 42.9 77,724 57.1 136,099
10,501 42.6 14,166 57.4 24,667
5,435 32.6 11,253 67.4 16,688
1,746 38.1 2,838 61.9 4,584
33,005 39.9 49,765 60.1 82,770
7,783 40.8 11,271 59.2 19,054
137,141 51.3 130,101 48.7 267,242
35,071 51.9 32,551 48.1 67,622
6,224 39.2 9,666 60.8 15,890
Totals 6,019,422 54.2 5,093,942 45.8 11,113,364

By congressional district

Feinstein won 39 of the 53 congressional districts. De Leon won 14, including seven held by Republicans and seven held by Democrats.[126]

DistrictDe LeonFeinsteinRepresentative
59.86%40.14%Doug LaMalfa
43.41%56.59%Jared Huffman
52.8%47.2% John Garamendi
54.69%45.31%Tom McClintock
43.66%56.34%Mike Thompson
43.43%56.57%Doris Matsui
49.26%50.74%Ami Bera
54.29%45.71%Paul Cook
51.19%48.81%Jerry McNerney
56.92%43.08%Josh Harder
40.42%59.58%Mark DeSaulnier
36.03%63.97%Nancy Pelosi
41.1%58.9%Barbara Lee
36.5%63.5%Jackie Speier
42.69%57.31%Eric Swalwell
51.9%48.1%Jim Costa
39.71%60.29%Ro Khanna
39.09%60.91%Anna Eshoo
41.63%58.37%Zoe Lofgren
45.79%54.21%Jimmy Panetta
56.99%43.01%TJ Cox
55.71%44.29%Devin Nunes
60.29%39.71%Kevin McCarthy
52.73%47.27%Salud Carbajal
50.33%49.67%Katie Hill
47.93%52.07%Julia Brownley
39.85%60.15%Judy Chu
41.56%58.44%Adam Schiff
44.98%55.02%Tony Cárdenas
37.92%62.08%Brad Sherman
48.83%51.17%Pete Aguilar
46.78%53.22%Grace Napolitano
37.59%62.41%Ted Lieu
48.02%51.98%Jimmy Gomez
47.85%52.15%Norma Torres
51.66%48.34%Raul Ruiz
35.83%64.17%Karen Bass
46.28%53.72%Linda Sánchez
44.47%55.53%Gil Cisneros
48.89%51.11%Lucille Roybal-Allard
48.06%51.94%Mark Takano
52.14%47.86%Ken Calvert
37.57%62.43%Maxine Waters
42.84%57.16%Nanette Barragán
45.71%54.29%Katie Porter
47.19%52.81%Lou Correa
44.69%55.31%Alan Lowenthal
44.87%55.13%Harley Rouda
46.81%53.19%Mike Levin
52.07%47.93%Duncan Hunter
51.56%48.44%Juan Vargas
43.69%56.31%Scott Peters
45.09%54.91%Susan Davis

External links

Official campaign websites

Notes and References

  1. News: United States Senate election in California, 2018 - Ballotpedia. December 23, 2017. en-US.
  2. News: Feinstein's record: 7.3 million votes. November 26, 2012. Politico. Charles Mahtesian. Politico. December 16, 2012.
  3. News: 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. July 20, 2017. en-US. 0458-3035.
  4. News: What will Feinstein do? California Democrats await senator's re-election decision to plot their own futures. Mehta. Seema. January 17, 2017. Los Angeles Times. July 20, 2017. en-US. 0458-3035.
  5. Web site: LeBlanc . Clare; Foran, Paul . 2023-09-29 . Dianne Feinstein, longest-serving female US senator in history, dies at 90 CNN Politics . 2023-11-07 . CNN . en.
  6. Web site: McGreevy. Patrick. With his political clock ticking, state Senate leader Kevin de León keeps mum about what he'll do next. Los Angeles Times. September 21, 2017. September 23, 2017.
  7. Web site: De Leon to Challenge Feinstein in California Senate Race. Bridget. Bowman. October 15, 2017. January 20, 2018. www.RollCall.com.
  8. Web site: Calif. Dem announces Feinstein challenge. Mallory. Shelbourne. October 15, 2017. The Hill. January 20, 2018.
  9. Web site: Sen. Dianne Feinstein says she'll run again: 'There's still so much work left to do'. Wire. Sarah D.. October 9, 2017. Los Angeles Times. October 9, 2017.
  10. Web site: Candidate List . Lavote.net . 2022-04-14.
  11. Web site: California 2017 General Election. www.thegreenpapers.com.
  12. Web site: Harris, Eugene Patterson - Candidate overview. FEC.gov.
  13. News: Gregory . Krieg. 'Justice Democrats' launch new California Senate candidate. CNN.
  14. Web site: Sommer. Will. Progressive group backs new Feinstein challenger. The Hill. November 2, 2017.
  15. Web site: David Hildebrand for U.S. Senate 2018. DavidForCalifornia.com. January 20, 2018.
  16. Web site: Hildebrand, David - Candidate overview . FEC.gov. January 20, 2018.
  17. Web site: Brennan, Christopher - Candidate overview. FEC.gov.
  18. Web site: Page by Page Report Display for 201702010200050167 (Page 1 of 4). docquery.FEC.gov.
  19. Web site: Candidate Details. https://web.archive.org/web/20110421070013/http://fec.gov/disclosurehs/HSCandDetail.do. dead. April 21, 2011. www.FEC.gov.
  20. News: 2018 California Senate race expected to get more crowded. Gregory . Krieg. CNN. October 14, 2017.
  21. Web site: New primary challenger to Feinstein emerges. Politico. September 7, 2017 .
  22. Web site: California politics news feed. November 2017 . January 20, 2018. Los Angeles Times.
  23. Web site: California Billionaire Will Not Run in 2018 Elections. NBCConnecticut.com. January 8, 2018 . January 20, 2018.
  24. Web site: Liberal online news host Cenk Uygur considering Senate run in California. October 19, 2017.
  25. Web site: 2016 California General Election Official Voter Information Guide . March 24, 2018 . https://web.archive.org/web/20160918201713/http://voterguide.sos.ca.gov/pdf/complete-vig.pdf . September 18, 2016 . dead . mdy-all .
  26. Web site: Contest/Candidate Proof List, Qualified and on Ballot, Statewide Primary Election 5-June-2018: Voter Nominated Offices United States Senator. 14. Website of the Secretary of State - California. sos.ca.gov.
  27. Web site: Registrar of Voters 2018 Statewide Direct Primary Election . County of San Diego . March 10, 2018 . March 11, 2018 . https://web.archive.org/web/20180311140844/http://www.sdvote.com/content/dam/rov/en/election/2018June/Candidate_List.pdf . dead .
  28. Web site: Patrick Little, neo-Nazi Senate candidate, banned from state GOP convention. May 6, 2018. San Francisco Chronicle.
  29. Web site: Taylor, Paul Allen MR - Candidate overview . FEC.gov.
  30. Web site: Search results. FEC.gov.
  31. Web site: Coson, Gary Lynn - Candidate overview. FEC.gov.
  32. johnestrada. 961741092356960257. 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.. John. Estrada. February 8, 2018.
  33. Web site: Tim Kalemkarian S18 Committee - committee overview. FEC.gov.
  34. Web site: Wildermuth. John. It's been 30-plus years: Time to run for Congress again?. San Francisco Chronicle. August 23, 2019. August 22, 2019. https://web.archive.org/web/20190822212021/https://www.sfchronicle.com/politics/article/It-s-been-30-plus-years-Time-to-run-for-14371053.php. August 22, 2019. live.
  35. Web site: Search results. FEC.gov.
  36. Web site: Saavedra, Jazmina - Candidate overview. FEC.gov. January 20, 2018.
  37. Web site: Schrader, Stephen James - Candidate overview. FEC.gov.
  38. Web site: Kevin Faulconer, San Diego mayor, quietly mulling run for governor. Politico. January 20, 2018. November 7, 2017. https://web.archive.org/web/20171107012342/https://www.politico.com/states/california/story/2017/01/kevin-faulconer-san-diego-mayor-quietly-mulls-run-for-governor-108468. dead.
  39. Web site: How California lawmakers have tried and failed to fix the state's housing crisis. June 30, 2017 . January 20, 2018. Los Angeles Times.
  40. News: Caitlyn Jenner weighs run for Senate. Manchester, Julia. The Hill. July 16, 2017. July 16, 2017.
  41. Web site: Washington. Arlene. Arnold Schwarzenegger shoots down US Senate run. March 12, 2017. AOL. March 13, 2017.
  42. News: Republican Ashley Swearengin says she won't run for governor or U.S. Senate in 2018. Mehta, Seema. Los Angeles Times. November 2, 2017.
  43. Web site: Laguna Beach Local News Laguna Local to Make a Bid for the Senate . Laguna Beach Local News . January 18, 2018 . April 4, 2018.
  44. Web site: Certified List of Write-In Candidates for the June 5, 2018, Statewide Direct Primary Election . State of California Secretary of State . May 25, 2018.
  45. Web site: Search results . FEC.gov.
  46. Web site: Candidates for Public Office . Constitutionpartyofcalifornia.org . 2018-04-04 . https://web.archive.org/web/20180328164628/http://www.constitutionpartyofcalifornia.org/candidates.html . March 28, 2018 . dead . mdy-all .
  47. Web site: Socialist Equality Party announces California candidates in midterm elections . Wsws.org . April 3, 2018 . April 4, 2018.
  48. Web site: Olson, Lee W - Candidate overview . FEC.gov.
  49. Web site: Shi, Ling Ling - Candidate overview. FEC.gov.
  50. Web site: Carroll, Jerry Leon - Candidate overview. FEC.gov.
  51. Web site: Michael DR. fec.gov.
  52. Web site: Hodge, Charles Junior - Candidate overview. FEC.gov.
  53. Web site: Mead, Richard Thomas - Candidate overview. FEC.gov.
  54. Web site: Roberts, Clifton - Candidate overview. FEC.gov.
  55. Web site: Vegan in the Region: The Humane Party. Bob. Kasarda. nwitimes.com. October 23, 2016 .
  56. Web site: Campaign finance data. April 23, 2018.
  57. https://escholarship.org/uc/item/4x28272w UC Berkeley
  58. Paul Taylor (R) 4%, Other Republicans 9%, Other Democrats 6%, All other candidates 2%, Undecided 25%
  59. https://www.emerson.edu/sites/default/files/Files/Academics/ecp-ca-5-24-pr.pdf Emerson College
  60. Other 6%, Undecided 32%
  61. https://web.archive.org/web/20180601201230/https://files-west-stanford-edu.s3-us-west-2.amazonaws.com/s3fs-public/billlanecenter-yougov-ca_primary_toplines_20180524.pdf YouGov
  62. 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%
  63. http://www.surveyusa.com/client/PollReport.aspx?g=01a8ace0-88c1-4bdd-975a-4011f405804a SurveyUSA
  64. 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%
  65. http://www.ppic.org/wp-content/uploads/s-518mbs.pdf Public Policy Institute of California
  66. Other with 5%, Undecided with 36%
  67. https://drive.google.com/file/d/1rQdeV7sf9XI-0xMDg58Qg0igsZRVGWW3/view USC Dornsife/Los Angeles Times
  68. 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%
  69. https://web.archive.org/web/20180510051311/https://d2pggiv3o55wnc.cloudfront.net/oann/wp-content/uploads/2018/05/OAN-POLL.pdf Gravis Marketing
  70. John Melendez* (D) 3%, David Hildebrand (D) 2%, Undecided 16%. *Withdrawn
  71. http://www.surveyusa.com/client/PollReport.aspx?g=e60651f4-03ad-4a80-9b0d-09bc68bbdc74 SurveyUSA
  72. John Melendez* (D) 4%, Other 2%, Undecided 17%. *Withdrawn.
  73. http://www.sacbee.com/news/politics-government/capitol-alert/article209849549.html UC Berkeley
  74. Other Republicans 8%, Other non-Republicans 6%, Undecided 35%
  75. http://www.ppic.org/wp-content/uploads/s-318mbs.pdf Public Policy Institute of California
  76. Other with 2, Undecided with 39%
  77. http://www.ppic.org/wp-content/uploads/s-118mbs.pdf Public Policy Institute of California
  78. Other with 3%, Undecided with 33%
  79. https://escholarship.org/uc/item/3z97f1d8 UC Berkeley
  80. Other/Undecided with 32%
  81. http://www.ppic.org/wp-content/uploads/crosstabs_likelyvoters1217.pdf Public Policy Institute of California
  82. Other with 1%, Undecided with 33%
  83. http://capweekly.wpengine.netdna-cdn.com/wp-content/uploads/2017/10/Poll-1.pdf Sextant Strategies & Research
  84. Not voting with 29%, Undecided with 17%
  85. http://www.surveyusa.com/client/PollReport.aspx?g=114aa760-42a1-4cfa-9eeb-4a064c31c080 SurveyUSA
  86. 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%
  87. http://www.surveyusa.com/client/PollReport.aspx?g=04104c60-a299-4ed4-87a4-f9f25ff81e7d SurveyUSA
  88. 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%
  89. 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%
  90. http://capweekly.wpengine.netdna-cdn.com/wp-content/uploads/2017/10/Poll-1.pdf Sextant Strategies & Research
  91. http://www.publicpolicypolling.com/pdf/2015/CaliforniaPollJanuary2017.pdf Public Policy Polling
  92. Web site: 2018 Senate Race Ratings. The Cook Political Report. October 11, 2017.
  93. Web site: 2018 Senate Ratings. The Rothenberg Political Report. October 11, 2017.
  94. Web site: 2018 Crystal Ball Senate race ratings. Sabato's Crystal Ball. October 11, 2017.
  95. Web site: Daily Kos Elections 2018 race ratings. Daily Kos. June 5, 2018.
  96. Web site: 2018 Senate Power Rankings. Fox News. July 10, 2018.
  97. Highest rating given
  98. Web site: Key Races: Senate. July 15, 2018.
  99. Web site: Battle for the Senate 2018. July 15, 2018.
  100. News: California - 2018 Senate Forecast. Silver. Nate. FiveThirtyEight. October 20, 2018. en-US.
  101. https://web.archive.org/web/20181105212342/https://twitter.com/ChangePolls/status/1059542027933691904 Change Research
  102. https://researchco.ca/wp-content/uploads/2018/11/Tables_Midterms_04Nov2018.pdf Research Co.
  103. http://www.surveyusa.com/client/PollReport.aspx?g=fd127dca-7216-469a-bac4-573c5e33b81c SurveyUSA
  104. https://www.probolskyresearch.com/2018/10/31/feinstein-leads-u-s-senate-race-in-california-de-leon-shows-strength/ Probolsky Research
  105. https://escholarship.org/uc/item/3949w8v3 UC Berkeley
  106. https://files-west-stanford-edu.s3-us-west-2.amazonaws.com/s3fs-public/billlanecenter-stanford-yougov-ca_general_toplines_20181024.pdf YouGov
  107. http://www.ppic.org/wp-content/uploads/ppic-statewide-survey-october-2018.pdf Public Policy Institute of California
  108. https://www.emerson.edu/news-events/emerson-college-today/emerson-e-poll-incumbents-feinstein-newsom-favored-win-senate-gov-races-ca-over-60-disapprove-trump Emerson College
  109. http://www.surveyusa.com/client/PollReport.aspx?g=85614f00-b105-4f49-a6e5-630e246d8d52 SurveyUSA
  110. https://drive.google.com/file/d/13E1_zDiuujJ3A4_QD-DSvnxazr0EQiH7/view USC Dornsife/Los Angeles Times
  111. https://www.prnewswire.com/news-releases/feinstein-enjoys-double-digit-lead-in-us-senate-race-300731920.html 1st Tuesday Campaigns
  112. https://web.archive.org/web/20180920234655/https://poppolling.com/wp-content/uploads/2018/09/CA-Statewide-Survey-Toplines-Sept.-2018.pdf Vox Populi Polling
  113. http://www.ppic.org/wp-content/uploads/ppic-statewide-survey-september-2018.pdf Public Policy Institute of California
  114. https://www.ipsos.com/en-us/news-polls/election-data-CA-FL-TX-NV-AZ Ipsos
  115. https://www.probolskyresearch.com/2018/09/06/newsom-leads-cox-for-governor-but-not-by-large-margin-feinstein-over-de-leon/ Probolsky Research (R)
  116. http://www.ppic.org/wp-content/uploads/ppic-statewide-survey-july-2018.pdf Public Policy Institute of California
  117. http://www.surveyusa.com/client/PollReport.aspx?g=5c3abf41-032d-4193-a22c-ff7533569df9 SurveyUSA
  118. https://drive.google.com/file/d/1xM21hJAl4kbpsDCMblidfXkfrQYM6jYu/view USC Dornsife/Los Angeles Times
  119. http://www.probolskyresearch.com/2018/04/24/feinstein-leads-de-leon-in-the-ca-u-s-senate-race-general-election-match-up/ Probolsky Research (R)
  120. https://drive.google.com/file/d/1YFMtkMeZ6fzDSVY1fPf_B-qMmZs_Qb7R/view USC Dornsife/Los Angeles Times
  121. http://capweekly.wpengine.netdna-cdn.com/wp-content/uploads/2017/10/Poll-1.pdf Sextant Strategies & Research
  122. http://capweekly.wpengine.netdna-cdn.com/wp-content/uploads/2017/10/Poll-1.pdf Sextant Strategies & Research
  123. Web site: Supplement to the Statement of Vote - Counties by Congressional Districts for United States Senator . State of California Secretary of State.
  124. Web site: Supplement to the Statement of Vote - Counties by Congressional Districts for Governor . State of California Secretary of State.
  125. Web site: Governor - Statewide Results PDF . California Secretary of State . January 7, 2019.
  126. Web site: Daily Kos Elections' presidential results by congressional district for 2020, 2016, and 2012. Daily Kos.