# 2006 United States Senate election in California

Elections in California :
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vte :
The 2006 United States Senate election in California was held November 7, 2006. Incumbent Democratic U.S. Senator Dianne Feinstein won re-election to her third full term.
Feinstein stood against Republican Dick Mountjoy, who had never held a statewide elected position, but had been a state senator for several years. Also running was Libertarian Michael Metti, Don Grundmann of the American Independent Party, Todd Chretien of the Green Party and Marsha Feinland of the Peace and Freedom Party.
Because California is a state that requires a large amount of money to wage a competitive statewide campaign, it is not unusual - as was the case for this race - for a popular incumbent to have no significant opponent. Several prominent Republicans, such as Bill Jones, Matt Fong, and others, declined to run, and a previously announced challenger, businessman Bill Mundell, withdrew his declaration after determining he would not be a self-funded candidate (as Michael Huffington was in the 1994 election). Since Feinstein's death in 2023, this is the most recent U.S. Senate election in California and latest U.S. Senate election of any state in the nation where both major party Senate nominees are deceased.

## Primaries

Link to primary results

### Democratic

2006 United States Senate Democratic primary, California :
| Candidate | Candidate | Votes | % |
| Dianne Feinstein (Incumbent) | Dianne Feinstein (Incumbent) | 2,176,888 | 86.95 |
| Colleen Fernald | Colleen Fernald | 199,180 | 7.96 |
| Martin Luther Church | Martin Luther Church | 127,301 | 5.09 |
| Total votes | Total votes | 2,503,369 | 100.00 |

### Green

2006 United States Senate Green primary, California :
| Candidate | Candidate | Votes | % |
| Todd Chretien | Todd Chretien | 12,821 | 46.14 |
| Tian Harter | Tian Harter | 10,318 | 37.13 |
| Kent Mesplay | Kent Mesplay | 4,649 | 16.73 |
| Total votes | Total votes | 27,788 | 100.00 |

### Others

2006 United States Senate primary, California (Others) :
| Party | Candidate | Votes | % |
| Republican | Dick Mountjoy | 1,560,472 | 100.00% |
| American Independent | Don J. Grundmann | 30,787 | 100.00% |
| Libertarian | Michael S. Metti | 16,742 | 100.00% |
| Peace and Freedom | Marsha Feinland | 4,109 | 100.00% |

## Candidates
### Democratic Party

* Dianne Feinstein, incumbent U.S. Senator, former Mayor of San Francisco
Lost in primary
* Martin Luther Church, retired program manager
* Colleen Fernald, artist and entrepreneur

### Republican Party

* Richard Mountjoy, former State Senator, former State Assemblyman and candidate for Lieutenant Governor in 1998

### American Independent Party

* Don J. Grundmann, chiropractor

### Green Party

* Todd Chretien, writer
Lost in primary
* Tian Harter, green activist and a 1992 Congressional nominee
* Kent Mesplay, environmental activist, air quality inspector, and candidate for president in 2004

### Libertarian Party

* Michael Metti, businessman and perennial candidate

### Peace and Freedom Party

* Marsha Feinland, state party chair, socialist activist, and retired teacher

## General election
### Controversy

On September 22, the Los Angeles Times reported that Mountjoy's official biography, as found on his campaign website, falsely asserted that he had served aboard the battleship USS Missouri during the Korean War—he had actually served aboard the heavy cruiser USS Bremerton. A review of the ships' logs corroborated this and the website was quickly changed to reflect his service aboard the Bremerton rather than the Missouri.
   I think it was just something that somebody picked up, it didn't come from me.

### Predictions

| Source | Ranking | As of |
| The Cook Political Report | Solid D | November 6, 2006 |
| Sabato's Crystal Ball | Safe D | November 6, 2006 |
| Rothenberg Political Report | Safe D | November 6, 2006 |
| Real Clear Politics | Safe D | November 6, 2006 |

### Polling

| Source | Date | Feinstein (D) | Mountjoy (R) |
| Field Poll | April 19, 2006 | 59% | 31% |
| Los Angeles Times Poll | May 28, 2006 | 59% | 30% |
| Field Poll | June 4, 2006 | 54% | 28% |
| Rasmussen | July 13, 2006 | 60% | 33% |
| Public Policy | July 26, 2006 | 42% | 21% |
| Field Poll | August 3, 2006 | 56% | 34% |
| SurveyUSA | August 28, 2006 | 56% | 34% |
| Rasmussen | August 31, 2006 | 56% | 34% |
| Rasmussen | September 12, 2006 | 58% | 35% |
| Datamar | September 18, 2006 | 49% | 38% |
| SurveyUSA | September 27, 2006 | 55% | 35% |
| Los Angeles Times Poll | September 29, 2006 | 54% | 36% |
| Mason-Dixon | October 2, 2006 | 53% | 23% |
| Field Poll | October 3, 2006 | 57% | 29% |
| SurveyUSA | October 26, 2006 | 59% | 33% |
| Field Poll | November 1, 2006 | 55% | 33% |
| SurveyUSA | November 5, 2006 | 60% | 31% |

### Results

Feinstein won the election easily. She won almost every major populated area, winning in Los Angeles, San Francisco, Sacramento, and San Diego. Feinstein was projected the winner as soon as the polls closed at 11 P.M. EST.
United States Senate election in California, 2006 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dianne Feinstein (incumbent) | 5,076,289 | 59.43% |
| | Republican | Dick Mountjoy | 2,990,822 | 35.02% |
| | Green | Todd Chretien | 147,074 | 1.72% |
| | Libertarian | Michael S. Metti | 133,851 | 1.57% |
| | Peace and Freedom | Marsha Feinland | 117,764 | 1.38% |
| | American Independent | Don J. Grundmann | 75,350 | 0.88% |
| | Green | Kent Mesplay (write-in) | 160 | 0.00% |
| | Independent | Jeffrey Mackler (write-in) | 108 | 0.00% |
| | Independent | Lea Sherman (write-in) | 47 | 0.00% |
| | Independent | Connor Vlakancic (write-in) | 11 | 0.00% |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 357,583 | 4.19% |
| Total votes | Total votes | Total votes | 8,899,059 | 100.00% |
| Turnout | Turnout | Turnout | | 53.93 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### By county

Final results from the Secretary of State of California.
| County | Feinstein | Votes | Mountjoy | Votes | Others | Votes |
| San Francisco | 80.54% | 187,692 | 8.31% | 19,374 | 11.15% | 25,979 |
| Marin | 77.56% | 82,025 | 16.82% | 17,788 | 5.62% | 5,946 |
| Alameda | 76.07% | 307,495 | 16.46% | 66,550 | 7.46% | 30,173 |
| San Mateo | 74.80% | 152,082 | 20.19% | 41,043 | 5.02% | 10,200 |
| Santa Cruz | 72.96% | 65,214 | 19.33% | 17,279 | 7.71% | 6,891 |
| Santa Clara | 69.84% | 298,451 | 24.89% | 106,383 | 5.27% | 22,521 |
| Sonoma | 69.50% | 119,672 | 23.01% | 39,619 | 7.49% | 12,906 |
| Contra Costa | 68.48% | 205,516 | 26.91% | 80,764 | 4.60% | 13,818 |
| Los Angeles | 67.13% | 1,298,820 | 27.72% | 536,200 | 5.15% | 99,646 |
| Monterey | 65.28% | 56,887 | 29.15% | 25,400 | 5.57% | 4,852 |
| Mendocino | 64.50% | 19,645 | 25.16% | 7,662 | 10.34% | 3,149 |
| Yolo | 64.25% | 34,548 | 30.10% | 16,187 | 5.65% | 3,036 |
| Napa | 64.05% | 27,144 | 30.58% | 12,958 | 5.37% | 2,277 |
| Solano | 63.06% | 64,828 | 32.06% | 32,956 | 4.89% | 5,025 |
| San Benito | 60.74% | 8,626 | 33.58% | 4,768 | 5.68% | 807 |
| Imperial | 60.02% | 13,182 | 33.41% | 7,338 | 6.57% | 1,442 |
| Humboldt | 58.07% | 27,652 | 31.51% | 15,003 | 10.42% | 4,964 |
| Alpine | 57.17% | 303 | 35.47% | 188 | 7.36% | 39 |
| Santa Barbara | 57.00% | 68,970 | 37.08% | 44,864 | 5.92% | 7,157 |
| Sacramento | 56.59% | 201,221 | 37.94% | 134,887 | 5.47% | 19,447 |
| Lake | 56.41% | 10,830 | 34.85% | 6,691 | 8.74% | 1,678 |
| San Joaquin | 54.71% | 75,011 | 40.02% | 54,874 | 5.27% | 7,224 |
| Merced | 53.84% | 22,081 | 41.24% | 16,914 | 4.93% | 2,021 |
| Ventura | 53.22% | 115,471 | 42.12% | 91,374 | 4.66% | 10,110 |
| San Diego | 53.03% | 403,711 | 42.39% | 322,760 | 4.58% | 34,875 |
| Fresno | 51.45% | 89,331 | 43.94% | 76,286 | 4.60% | 7,993 |
| San Luis Obispo | 50.09% | 47,891 | 44.70% | 42,742 | 5.21% | 4,977 |
| Nevada | 49.98% | 21,204 | 43.88% | 18,618 | 6.14% | 2,606 |
| San Bernardino | 49.40% | 167,821 | 45.17% | 153,430 | 5.43% | 18,442 |
| Trinity | 49.39% | 2,824 | 41.20% | 2,356 | 9.41% | 538 |
| Stanislaus | 49.30% | 50,656 | 46.24% | 47,513 | 4.47% | 4,589 |
| Mono | 48.98% | 1,829 | 44.38% | 1,657 | 6.64% | 248 |
| Riverside | 48.54% | 183,532 | 46.43% | 175,543 | 5.03% | 19,006 |
| Del Norte | 48.11% | 3,207 | 44.33% | 2,955 | 7.56% | 504 |
| Butte | 47.02% | 32,131 | 45.82% | 31,316 | 7.16% | 4,892 |
| Kings | 47.02% | 10,660 | 48.59% | 11,016 | 4.40% | 997 |
| Tuolumne | 45.52% | 9,535 | 48.83% | 10,228 | 5.65% | 1,184 |
| Orange | 45.13% | 321,646 | 49.66% | 353,924 | 5.21% | 37,096 |
| Placer | 44.53% | 53,956 | 50.85% | 61,615 | 4.62% | 5,594 |
| Plumas | 44.36% | 3,881 | 49.66% | 4,345 | 5.98% | 523 |
| Amador | 44.35% | 6,534 | 50.10% | 7,382 | 5.55% | 818 |
| Calaveras | 44.33% | 7,860 | 48.74% | 8,642 | 6.92% | 1,227 |
| El Dorado | 43.25% | 28,915 | 50.99% | 34,091 | 5.76% | 3,853 |
| Mariposa | 42.98% | 3,249 | 50.83% | 3,842 | 6.19% | 468 |
| Madera | 42.39% | 12,658 | 52.27% | 15,609 | 5.34% | 1,596 |
| Tulare | 42.09% | 28,694 | 53.58% | 36,526 | 4.34% | 2,956 |
| Inyo | 41.41% | 2,641 | 51.44% | 3,281 | 7.15% | 456 |
| Siskiyou | 41.20% | 6,752 | 51.46% | 8,433 | 7.34% | 1,203 |
| Colusa | 41.08% | 1,994 | 54.53% | 2,647 | 4.39% | 213 |
| Sierra | 40.67% | 641 | 51.65% | 814 | 7.68% | 121 |
| Yuba | 39.94% | 5,487 | 52.82% | 7,257 | 7.24% | 994 |
| Sutter | 39.48% | 9,297 | 55.69% | 13,113 | 4.83% | 1,138 |
| Kern | 39.29% | 58,330 | 55.19% | 81,944 | 5.53% | 8,205 |
| Tehama | 38.70% | 6,914 | 55.22% | 9,865 | 6.08% | 1,086 |
| Shasta | 37.94% | 22,097 | 56.45% | 32,876 | 5.61% | 3,267 |
| Glenn | 37.84% | 2,813 | 56.76% | 4,219 | 5.39% | 401 |
| Lassen | 35.06% | 2,968 | 56.93% | 4,820 | 8.01% | 678 |
| Modoc | 34.44% | 1,264 | 57.03% | 2,093 | 8.53% | 313 |
* Republican — +12.5−15%
* Republican — +10−12.5%
* Republican — +7.5−10%
* Republican — +5−7.5%
* Republican — +2.5−5%
* Republican — +0−2.5%
* Democratic — +0−2.5%
* Democratic — +2.5−5%
* Democratic — +5−7.5%
* Democratic — +7.5-10%
* Democratic — +10−12.5%
* Democratic — +12.5−15%
* Democratic — >15%

##### Counties that flipped from Republican to Democratic

* Butte (largest city: Chico)
* Del Norte (largest community: Crescent City)
* Mono (largest municipality: Mammoth Lakes)
* Nevada (largest town: Truckee)
* San Luis Obispo (largest town: San Luis Obispo)
* Trinity (largest community: Weaverville)

##### Counties that flipped from Democratic to Republican

* Kings (largest municipality: Hanford)

#### By congressional district

Feinstein won 40 of 53 congressional districts, including six that elected Republicans.
| District | Feinstein | Mountjoy | Representative |
| 1st | 63% | 30% | Mike Thompson |
| 2nd | 42% | 52% | Wally Herger |
| 3rd | 49% | 46% | Dan Lungren |
| 4th | 44% | 50% | John Doolittle |
| 5th | 67% | 27% | Doris Matsui |
| 6th | 73% | 20% | Lynn Woolsey |
| 7th | 71% | 24% | George Miller |
| 8th | 80% | 8% | Nancy Pelosi |
| 9th | 81% | 8% | Barbara Lee |
| 10th | 66% | 30% | Ellen Tauscher |
| 11th | 55% | 40% | Richard Pombo (109th Congress) |
| 11th | 55% | 40% | Jerry McNerney (110th Congress) |
| 12th | 77% | 18% | Tom Lantos |
| 13th | 75% | 20% | Pete Stark |
| 14th | 72% | 22% | Anna Eshoo |
| 15th | 69% | 26% | Mike Honda |
| 16th | 70% | 25% | Zoe Lofgren |
| 17th | 69% | 25% | Sam Farr |
| 18th | 59% | 36% | Dennis Cardoza |
| 19th | 47% | 49% | George Radanovich |
| 20th | 60% | 34% | Jim Costa |
| 21st | 43% | 52% | Devin Nunes |
| 22nd | 37% | 57% | Bill Thomas (109th Congress) |
| 22nd | 37% | 57% | Kevin McCarthy (110th Congress) |
| 23rd | 62% | 32% | Lois Capps |
| 24th | 49% | 46% | Elton Gallegly |
| 25th | 45% | 50% | Buck McKeon |
| 26th | 48% | 47% | David Dreier |
| 27th | 63% | 31% | Brad Sherman |
| 28th | 75% | 20% | Howard Berman |
| 29th | 64% | 31% | Adam Schiff |
| 30th | 72% | 24% | Henry Waxman |
| 31st | 79% | 14% | Xavier Becerra |
| 32nd | 68% | 27% | Hilda Solis |
| 33rd | 84% | 11% | Diane Watson |
| 34th | 74% | 21% | Lucille Roybal-Allard |
| 35th | 81% | 15% | Maxine Waters |
| 36th | 63% | 31% | Jane Harman |
| 37th | 77% | 18% | Juanita Millender-McDonald |
| 38th | 72% | 23% | Grace Napolitano |
| 39th | 64% | 31% | Linda Sánchez |
| 40th | 44% | 50% | Ed Royce |
| 41st | 44% | 51% | Jerry Lewis |
| 42nd | 42% | 53% | Gary Miller |
| 43rd | 65% | 30% | Joe Baca |
| 44th | 46% | 48% | Ken Calvert |
| 45th | 51% | 45% | Mary Bono |
| 46th | 48% | 47% | Dana Rohrabacher |
| 47th | 59% | 34% | Loretta Sanchez |
| 48th | 46% | 50% | John B. T. Campbell III |
| 49th | 42% | 53% | Darrell Issa |
| 50th | 51% | 45% | Brian Bilbray |
| 51st | 63% | 32% | Bob Filner |
| 52nd | 46% | 50% | Duncan L. Hunter |
| 53rd | 66% | 29% | Susan Davis |