# California's 23rd senatorial district

California's 23rd senatorial district is one of 40 California State Senate districts. It is currently represented by Republican Suzette Martinez Valladares of Santa Clarita.

## District profile

For and after the 2024 California State Senate election, the district will encompass the high desert communities of the Antelope Valley and Victor Valley, as well as the Santa Clarita Valley in Los Angeles County. The district has a very large Latino population.

## Election results from statewide races

| Year | Office | Results |
| 2022 | Governor | Dahle 53.6 – 46.4% |
| 2022 | Senator | Meuser 51.5 – 48.5% |
| 2020 | President | Biden 49.0 – 48.8% |
| 2018 | Governor | Cox 54.4 – 45.6% |
| 2018 | Senator | de Leon 52.6 – 47.4% |
| 2016 | President | Trump 48.7 – 45.7% |
| 2016 | Senator | Harris 58.3 – 41.7% |
| 2014 | Governor | Kashkari 57.7 – 42.3% |
| 2012 | President | Romney 51.8 – 46.0% |
| 2012 | Senator | Emken 51.9 – 48.1% |

## List of senators representing the district
### 1863–1873: two seats

| Years | Seat A | Seat A | Seat A | Seat B | Seat B | Seat B | Counties represented |
| Years | Senator | Party | Electoral history | Member | Party | Electoral history | Counties represented |
| District established January 6, 1862 ||||||||||
| January 6, 1862 – December 7, 1863 | Lewis Cunningham (Marysville) | Union | Elected in 1862. Re-elected in 1863. Re-elected in 1865. [data missing] | William H. Parks (Marysville) | Union | Elected in 1862. [data missing] | Yuba |
| December 7, 1863 – December 4, 1865 | Lewis Cunningham (Marysville) | Union | Elected in 1862. Re-elected in 1863. Re-elected in 1865. [data missing] | Charles S. Haswell (Nicolaus) | Union | Elected in 1863. [data missing] | Sutter, Yuba |
| December 4, 1865 – December 6, 1867 | Lewis Cunningham (Marysville) | Union | Elected in 1862. Re-elected in 1863. Re-elected in 1865. [data missing] | Eli Teegarden (Marysville) | Union | Elected in 1865. Re-elected in 1867. [data missing] | Sutter, Yuba |
| December 6, 1867 – December 6, 1869 | Horace Beach (Marysville) | Union | Elected in 1867. [data missing] | Eli Teegarden (Marysville) | Union | Elected in 1865. Re-elected in 1867. [data missing] | Sutter, Yuba |
| December 6, 1869 – December 4, 1871 | Samuel C. Hutchings (Marysville) | Democratic | Elected in 1868. [data missing] | Second seat was eliminated for the term. | Second seat was eliminated for the term. | Second seat was eliminated for the term. | | Sutter, Yuba |
| December 4, 1871 – December 1, 1873 | Samuel C. Hutchings (Marysville) | Democratic | Elected in 1868. [data missing] | L. T. Crane (Marysville) | Republican | Elected in 1871. [data missing] | Sutter, Yuba |

### 1873–present: one seat

| Senator | Party | Years served | Electoral history | Counties represented |
| Stephen L. Spencer (Camptonville) | Republican | December 1, 1873 – December 6, 1875 | Elected in 1873. Redistricted to the 25th district. | Sutter, Yuba |
| Thomas Fraser (Placerville) | Republican | December 6, 1875 – December 3, 1877 | Elected in 1874. [data missing] | Alpine, El Dorado |
| William H. Brown (Placerville) | Republican | December 3, 1877 – January 8, 1883 | Elected in 1877. Re-elected in 1879. Re-elected in 1880. [data missing] | Alpine, El Dorado |
| Thomas Fraser (Placerville) | Republican | January 8, 1883 – January 5, 1885 | Elected in 1882. [data missing] | Alpine, El Dorado |
| Henry Mahler (Coloma) | Democratic | January 5, 1885 – January 3, 1887 | Elected in 1884. Retired to run for State Assembly. | Alpine, El Dorado |
| P. J. Crimmins (San Francisco) | Republican | January 3, 1887 – January 7, 1889 | Elected in 1886. [data missing] | San Francisco |
| William H. Williams (San Francisco) | Democratic | January 7, 1889 – January 2, 1893 | Elected in 1888. [data missing] | San Francisco |
| Charles S. Arms (San Francisco) | Democratic | January 2, 1893 – January 4, 1897 | Elected in 1892. [data missing] | San Francisco |
| Sydney Hall (San Francisco) | Democratic | January 4, 1897 – January 1, 1901 | Elected in 1896. [data missing] | San Francisco |
| John G. Tyrrell (San Francisco) | Republican | January 1, 1901 – January 2, 1905 | Elected in 1900. [data missing] | San Francisco |
| George B. Keane (San Francisco) | Republican | January 2, 1905 – January 4, 1909 | Elected in 1904. [data missing] | San Francisco |
| John P. Hare (San Francisco) | Democratic | January 4, 1909 – January 6, 1913 | Elected in 1908. [data missing] | San Francisco |
| Thomas F. Finn (San Francisco) | Republican | January 6, 1913 – January 8, 1917 | Elected in 1912. [data missing] | San Francisco |
| Walter A. McDonald (San Francisco) | Republican | January 8, 1917 – January 5, 1925 | Elected in 1916. [data missing] | San Francisco |
| Thomas A. Maloney (San Francisco) | Republican | January 5, 1925 – January 2, 1933 | Elected in 1924. Re-elected in 1928. Retired to run for State Assembly. | San Francisco |
| Bert B. Snyder (Chico) | Republican | January 2, 1933 – January 4, 1937 | Elected in 1932. Lost re-election. | Santa Cruz |
| James B. Holohan (Watsonville). | Democratic | January 4, 1937 – January 6, 1941 | Elected in 1936. [data missing] | Santa Cruz |
| H. R. Judah (Santa Cruz) | Republican | January 6, 1941 – January 5, 1953 | Elected in 1940. Re-elected in 1944. Re-elected in 1948. [data missing] | Santa Cruz |
| Donald L. Grunsky (Santa Cruz) | Republican | January 5, 1953 – January 2, 1967 | Elected in 1952. Re-elected in 1956. Re-elected in 1960. Re-elected in 1964. Redistricted to the 17th district. | San Benito, Santa Cruz |
| Lou Cusanovich (Westlake Village) | Republican | January 2, 1967 – November 30, 1976 | Elected in 1966. Re-elected in 1970. Re-elected in 1974. Redistricted to the 19th district. | Los Angeles |
| David Roberti (Los Angeles) | Democratic | December 6, 1976 – July 2, 1992 | Redistricted from the 27th district and re-elected in 1976. Re-elected in 1980. Re-elected in 1984. Re-elected in 1988. Resigned to assume seat in 20th district. | Los Angeles |
| Vacant | Vacant | July 2, 1992 – December 7, 1992 | | Los Angeles |
| Tom Hayden (Los Angeles) | Democratic | December 7, 1992 – November 30, 2000 | Elected in 1992. Re-elected in 1996. Retired due to term limits. | Los Angeles |
| Sheila Kuehl (Santa Monica) | Democratic | December 4, 2000 – November 30, 2008 | Elected in 2000. Re-elected in 2004. Retired due to term limits. | Los Angeles |
| Fran Pavley (Agoura Hills) | Democratic | December 1, 2008 – November 30, 2012 | Elected in 2008. Redistricted to the 27th district. | Los Angeles, Ventura |
| Bill Emmerson (Redlands) | Republican | December 3, 2012 – December 1, 2013 | Redistricted from the 37th district and Re-elected in 2012. Resigned. | Los Angeles, Riverside, San Bernardino |
| Vacant | Vacant | December 1, 2013 – April 3, 2014 | | Los Angeles, Riverside, San Bernardino |
| Mike Morrell (Rancho Cucamonga) | Republican | April 3, 2014 – November 30, 2020 | Elected to finish Emmerson's term. Re-elected in 2016. Retired due to term limits. | Los Angeles, Riverside, San Bernardino |
| Rosilicie Ochoa Bogh (Yucaipa) | Republican | December 7, 2020 – November 30, 2024 | Elected in 2020. Redistricted to the 19th district. | Los Angeles, Riverside, San Bernardino |
| Suzette Martinez Valladares (Santa Clarita) | Republican | December 2, 2024 – present | Elected in 2024. | Los Angeles, Riverside, San Bernardino |

## Contents

* 1992
* 1996
* 2000
* 2004
* 2008
* 2012
* 2014 (special)
* 2016
* 2020

### 2020

California State Senate election, 2020 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Democratic | Abigail Medina | 59,881 | 28.1 |
| | Republican | Rosilicie Ochoa Bogh | 52,820 | 24.8 |
| | Republican | Lloyd White | 46,267 | 21.7 |
| | Democratic | Kris Goodfellow | 37,153 | 17.4 |
| | Republican | Cristina Puraci | 17,028 | 8.0 |
| Total votes | Total votes | Total votes | 213,149 | 100.0 |
| General election |||||
| | Republican | Rosilicie Ochoa Bogh | 224,945 | 52.5 |
| | Democratic | Abigail Medina | 203,403 | 47.5 |
| Total votes | Total votes | Total votes | 428,348 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2016

California State Senate election, 2016 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Mike Morrell (incumbent) | 93,484 | 54.8 |
| | Democratic | Ronald J. O'Donnell | 50,850 | 29.8 |
| | Democratic | Mark Westwood | 26,300 | 15.4 |
| Total votes | Total votes | Total votes | 170,634 | 100.0 |
| General election |||||
| | Republican | Mike Morrell (incumbent) | 184,470 | 56.6 |
| | Democratic | Ronald J. O'Donnell | 141,533 | 43.4 |
| Total votes | Total votes | Total votes | 326,003 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2014 (special)

California's 23rd State Senate district special election, 2014 Vacancy resulting from the resignation of Bill Emmerson :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Mike Morrell | 43,447 | 62.6 |
| | Democratic | Ronald J. O'Donnell | 10,531 | 15.2 |
| | Democratic | Ameenah Fuller | 6,705 | 9.7 |
| | Libertarian | Jeff Hewitt | 4,479 | 6.5 |
| | Republican | Crystal Ruiz | 4,187 | 6.0 |
| Total votes | Total votes | Total votes | 69,349 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### 2012

California State Senate election, 2012 :
| Primary election |||||
| Party | Party | Candidate | Votes | % |
| | Republican | Bill Emmerson (incumbent) | 70,465 | 65.0 |
| | Democratic | Melissa Ruth O'Donnell | 37,939 | 35.0 |
| Total votes | Total votes | Total votes | 108,404 | 100.0 |
| General election |||||
| | Republican | Bill Emmerson (incumbent) | 159,045 | 56.3 |
| | Democratic | Melissa Ruth O'Donnell | 123,518 | 43.7 |
| Total votes | Total votes | Total votes | 282,563 | 100.0 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### 2008

California State Senate election, 2008 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Fran Pavley | 238,172 | 67.40 |
| | Republican | Rick Montaine | 96,274 | 27.25 |
| | Libertarian | Colin Goldman | 18,906 | 5.35 |
| Total votes | Total votes | Total votes | 353,352 | 100.00 |
| Turnout | Turnout | Turnout | | 70.91 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2004

California State Senate election, 2004 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Sheila Kuehl (incumbent) | 229,321 | 65.68 |
| | Republican | Leonard Michael Lanzi | 101,648 | 29.11 |
| | Libertarian | Colin Goldman | 18,168 | 5.20 |
| Total votes | Total votes | Total votes | 349,137 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 2000

California State Senate election, 2000 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Sheila Kuehl | 225,736 | 70.59 |
| | Republican | Daniel B. Rego | 79,009 | 24.71 |
| | Libertarian | Charles T. Black | 15,059 | 4.71 |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 36,099 | 10.14 |
| Total votes | Total votes | Total votes | 355,903 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1996

California State Senate election, 1996 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Hayden (incumbent) | 172,295 | 56.20 |
| | Republican | Scott L. Schreiber | 101,876 | 34.41 |
| | Peace and Freedom | Shirley Rachel Isaacson | 11,731 | 3.96 |
| | Libertarian | Charles T. Black | 7,438 | 2.51 |
| | Natural Law | Robert P. Swanson | 2,722 | 0.92 |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 28,592 | 5.61 |
| Total votes | Total votes | Total votes | 324,654 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### 1992

California State Senate election, 1992 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Tom Hayden | 198,425 | 55.89 |
| | Republican | Leonard H. "Len" McRoskey | 117,455 | 33.08 |
| | Peace and Freedom | Shirley Rachel Isaacson | 27,976 | 7.88 |
| | Libertarian | R. William Weilburg | 11,160 | 3.14 |
| | No party | Joseph Alexander Cota (write-in) | 8 | 0.00 |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 37,297 | 9.51 |
| Total votes | Total votes | Total votes | 355,024 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |