2018 California Superintendent of Public Instruction election

The 2018 California Superintendent of Public Instruction election was held on June 5 and November 6, 2018, to elect the Superintendent of Public Instruction of California. Unlike most other elections in California, the superintendent is not elected under the state's "top-two primary". Instead, the officially nonpartisan position is elected at a primary election, with a runoff at a general election if no candidate receives a majority of the vote.

2018 California Superintendent of Public Instruction election

 2014
June 5, 2018 (first round)
November 6, 2018 (runoff)
2022 
  150x150x
Candidate Tony Thurmond Marshall Tuck
Primary 2,136,919
35.59%
2,223,784
37.03%
Runoff 5,385,912
50.88%
5,198,738
49.12%

  150x150x
Candidate Lily Ploski Steven Ireland
Primary 984,932
16.40%
658,786
10.97%

Thurmond      20–30%      30–40%      40–50%      50–60%      60–70%
Tuck      30–40%      40–50%      50–60%      60–70%      70–80%
Ploski      30–40%

SPI before election

Tom Torlakson

Elected SPI

Tony Thurmond

The previous incumbent, Superintendent Tom Torlakson, was term-limited, so could not seek a third term. As no candidate received a majority in the primary, a runoff was held between two Democrats. Tony Thurmond narrowly defeated Marshall Tuck.

Primary election

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  • Note: The state Superintendent of Public Instruction election in California is officially nonpartisan. The parties below identify which party label each candidate would have run under if given the option.

Candidates

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Declared

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Declined

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Endorsements

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Tony Thurmond

Federal-level Elected Officials

State-level Elected Officials

Local-level Elected Officials

Organizations

Newspapers

Individuals

Marshall Tuck

Federal-level Appointed Officials

Federal-level Elected Officials

State-level Elected Officials

Local-level Elected Officials

Organizations

  • Association of California School Administrators[16]
  • California Peace Officers' Association[11]

Newspapers

Individuals

Results

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California Superintendent of Public Instruction election, 2018[20]
Candidate Votes %
Marshall Tuck 2,223,784 37.03%
Tony Thurmond 2,136,919 35.59%
Lily Ploski 984,932 16.40%
Steven Ireland 658,786 10.97%
Douglas I. Vigil (write-in) 83 0.00%
Thomas L. Williams (write-in) 66 0.00%
Total votes 6,004,570 100.00%

Runoff

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Candidates

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Endorsements

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Tony Thurmond

Federal-level Elected Officials

State-level Elected Officials

Local-level Elected Officials

Organizations

Newspapers

Individuals

Marshall Tuck

Federal-level Appointed Officials

Federal-level Elected Officials

State-level Elected Officials

Local-level Elected Officials

Organizations

  • Association of California School Administrators[16]
  • California Peace Officers' Association[11]

Newspapers

Individuals

Polling

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Poll source Date(s)
administered
Sample
size
Margin
of error
Tony
Thurmond
Marshall
Tuck
Undecided
UC Berkeley[22] October 19–26, 2018 1,339 ± 4.0% 36% 48% 16%
Thomas Partners Strategies[23] October 18–20, 2018 1,068 ± 3.5% 35% 37% 28%
Thomas Partners Strategies[24] October 5–7, 2018 1,068 ± 3.5% 28% 30% 41%
Thomas Partners Strategies[25] September 28–30, 2018 1,068 ± 3.5% 17% 29% 54%

Results

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2018 California Superintendent of Public Instruction runoff election[26]
Candidate Votes %
Tony Thurmond 5,385,912 50.88%
Marshall Tuck 5,198,738 49.12%
Total votes 10,584,650 100.00%

By county

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Blue represents counties won by Thurmond. Cyan represents counties won by Tuck.[27]

CountyThurmond #Thurmond %Tuck #Tuck %Margin #Margin %Total
Alameda329,23966.84163,34333.16165,89633.68492,582
Alpine27154.7522445.25479.49495
Amador5,49236.089,72963.92-4,237-27.8415,221
Butte32,41842.9043,15257.10-10,734-14.2075,570
Calaveras6,58536.4011,50863.60-4,923-27.2118,093
Colusa1,65334.653,11865.35-1,465-30.714,771
Contra Costa219,34357.73160,57342.2758,77015.47379,916
Del Norte2,89843.703,73356.30-835-12.596,631
El Dorado29,06439.1845,11960.82-16,055-21.6474,183
Fresno82,74037.42138,35962.58-55,619-25.16221,099
Glenn2,19630.704,95869.30-2,762-38.617,154
Humboldt24,73357.8917,98842.116,74515.7942,721
Imperial13,03444.8016,06155.20-3,027-10.4029,095
Inyo2,62444.263,30555.74-681-11.495,929
Kern67,94337.14114,99962.86-47,056-25.72182,942
Kings8,71933.7317,12966.27-8,410-32.5425,848
Lake9,42350.519,23249.491911.0218,655
Lassen2,32531.285,10868.72-2,783-37.447,433
Los Angeles1,422,56056.561,092,77643.44329,78413.112,515,336
Madera11,37734.3221,77065.68-10,393-31.3533,147
Marin72,66265.6438,04034.3634,62231.27110,702
Mariposa2,56537.154,34062.85-1,775-25.716,905
Mendocino17,87161.4911,19138.516,68022.9929,062
Merced20,36139.6830,95060.32-10,589-20.6451,311
Modoc85328.902,09971.10-1,246-42.212,952
Mono2,03950.372,00949.63300.744,048
Monterey51,01850.1050,80649.902120.21101,824
Napa27,66156.4821,31143.526,35012.9748,972
Nevada20,82746.3324,12953.67-3,302-7.3444,956
Orange391,49342.93520,45557.07-128,962-14.14911,948
Placer59,48339.8189,94160.19-30,458-20.38149,424
Plumas2,85237.914,67262.09-1,820-24.197,524
Riverside227,00342.44307,875 57.56-80,872-15.12534,878
Sacramento220,31949.93220,89750.07-578-0.13441,216
San Benito8,21946.959,28753.05-1,068-6.1017,506
San Bernardino194,00143.32253,83556.68-59,834-13.36447,836
San Diego425,09645.31513,20154.69-88,105-9.39938,297
San Francisco191,33266.1897,77733.8293,55532.36289,109
San Joaquin73,93643.6295,56356.38-21,627-12.76169,499
San Luis Obispo47,89045.7956,70454.21-8,814-8.43104,594
San Mateo146,67860.9094,18839.1052,49021.79240,866
Santa Barbara63,38849.9563,50350.05-115-0.09126,891
Santa Clara294,17255.72233,75244.2860,42011.44527,924
Santa Cruz60,47460.0040,32340.0020,15119.99100,797
Shasta19,57332.2241,16767.78-21,594-35.5560,740
Sierra50237.1684962.84-347-25.681,351
Siskiyou5,89038.899,25461.11-3,364-22.2115,144
Solano69,57553.3060,96746.708,6086.59130,542
Sonoma116,35062.8368,82537.1747,52525.66185,175
Stanislaus57,16742.2578,12657.75-20,959-15.49135,293
Sutter8,58032.6317,71667.37-9,136-34.7426,296
Tehama5,47630.4912,48569.51-7,009-39.0217,961
Trinity1,84440.142,75059.86-906-19.724,594
Tulare30,38435.7954,51364.21-24,129-28.4284,897
Tuolumne7,34337.0012,50463.00-5,161-26.0019,847
Ventura123,81248.29132,55551.71-8,743-3.41256,367
Yolo36,94857.6427,15542.369,79315.2864,103
Yuba5,63834.2210,84065.78-5,202-31.5716,478
Totals5,385,91250.885,198,73849.12187,1741.7710,584,650

See also

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References

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  1. "2018 certified list of candidates" (PDF). elections.cdn.sos.ca.gov. Retrieved March 2, 2023.
  2. "Lily E. Ploski Announces Bid for California State Superintendent of Public Instruction 2018". December 26, 2017. Retrieved April 17, 2018.
  3. 1 2 3 4 Koseff, Alexei (April 3, 2017). "Tony Thurmond enters schools chief race pledging to fight Trump on education funding". The Sacramento Bee. Retrieved April 4, 2017.
  4. 1 2 Koseff, Alexei (March 13, 2017). "Marshall Tuck running again for California schools chief: 'We've settled for mediocrity'". The Sacramento Bee. Retrieved April 4, 2017.
  5. 1 2 "2018 certified list of candidates" (PDF). elections.cdn.sos.ca.gov. Retrieved March 2, 2023.
  6. Holloway, Marguerite (March 27, 2017). "Two NASA Engineers Try Out Politics". The New Yorker. Retrieved April 4, 2017.
  7. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 "Endorsements". TONY THURMOND FOR SUPERINTENDENT OF PUBLIC INSTRUCTION. Retrieved April 4, 2018.
  8. 1 2 "2018 Official Endorsements – June 5, 2018 Elections" (PDF). Archived from the original (PDF) on May 7, 2018. Retrieved January 8, 2022.
  9. 1 2 "Endorsement: For his unwavering commitment to at-risk students, Tony Thurmond for superintendent of public instruction". Los Angeles Times. April 23, 2018.
  10. 1 2 "It's Thurmond for superintendent of public instruction, as California politics shift". Archived from the original on May 2, 2018. Retrieved January 8, 2022.
  11. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 "Supporters – Marshall Tuck". Retrieved March 2, 2023.
  12. 1 2 "Forty-year Bay Area Congressman George Miller (Ret.) Endorses Marshall Tuck for State Superintendent of Public Instruction". Archived from the original on April 21, 2018. Retrieved January 8, 2022.
  13. 1 2 "Assemblymember Shirley Weber Endorses Marshall Tuck for State Superintendent of Public Instruction". Archived from the original on April 21, 2018. Retrieved January 8, 2022.
  14. 1 2 3 4 5 6 7 8 "Four Democratic Legislators Endorse Marshall Tuck for State Superintendent". Archived from the original on April 21, 2018. Retrieved January 8, 2022.
  15. 1 2 "TUCK FOR STATE SUPERINTENDENT OF PUBLIC INSTRUCTION 2018; MARSHALL". Archived from the original on June 12, 2018. Retrieved January 8, 2022.
  16. 1 2 "Association of California School Administrators Endorses Marshall Tuck for State Superintendent". Archived from the original on April 21, 2018. Retrieved January 8, 2022.
  17. 1 2 "SF Chronicle Editorial Board Endorses Marshall Tuck". Archived from the original on April 21, 2018. Retrieved January 8, 2022.
  18. 1 2 "Endorsement: Marshall Tuck for state superintendent of schools". May 23, 2018.
  19. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 "TUCK FOR STATE SUPERINTENDENT OF PUBLIC INSTRUCTION 2018; MARSHALL". Archived from the original on February 8, 2018. Retrieved January 8, 2022.
  20. "Complete Statement of Votes" (PDF). California Secretary of State. Retrieved July 22, 2018.
  21. JohnHCox. "People have asked my recommendations on a lot of races & ballot measures - two easy ones are @StevePoizner for IC and @MarshallTuck for #SPI - they will both be great for CA! #Midterms #California". Twitter.
  22. UC Berkeley
  23. Thomas Partners Strategies
  24. Thomas Partners Strategies
  25. Thomas Partners Strategies
  26. Padilla, Alex (December 14, 2018). "Complete Statement of Vote" (PDF). Secretary of State of California. Archived (PDF) from the original on December 31, 2025. Retrieved May 18, 2026.
  27. Padilla, Alex (December 14, 2018). "Superintendent of Public Instruction by County" (PDF). Secretary of State of California. Archived (PDF) from the original on September 14, 2025. Retrieved May 18, 2026.
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