National
- Bill Clinton, Former President, United States of America
- Al Gore, Former Vice President, United States of America
- Joe Baca, Congressman, United States of America
- Sam Farr, Congressman, United States of America
- Diane Watson, Congresswoman, United States of America
- Grace Napolitano, Congresswoman, United States of America
- Lynn Woolsey, Congresswoman, United States of America
Former Democratic Candidates
- Mark DeSaulnier (D-Concord), State Senator, California State Senate and Former Democratic Candidate for 10th Congressional District
- Joan Buchanan (D-Alamo), Assemblymember, California State Assembly and Former Democratic Candidate for 10th Congressional District
- Anthony Woods, Former Democratic Candidate for 10th Congressional District
- Adriel Hampton, Former Democratic Candidate for 10th Congressional District
- Tiffany Attwood, Former Democratic Candidate for 10th Congressional District
Democratic Clubs
- Contra Costa County Democratic Central Committee
- Contra Costa County Labor Democratic Club
- Diablo Valley Democratic Club
- El Cerrito Democratic Club
- Lamorinda Democratic Club
- Tri-Valley Democratic Club
- Alameda County Democratic Lawyer's Club
- San Fernando Valley Democrats
- Women Democrats of Sacramento County
State
- Art Torres (Ret.), Former Chairman, California Democratic Party
- Tom Torlakson (D-Antioch), Assemblymember, California State Assembly
- Mariko Yamada (D-Solano), Assemblymember, California State Assembly
Regional/Local
- Jim Davis, Mayor, City of Antioch
- Dane Besneatte, Councilmember, City of Dixon
- Jack Batchelor, Mayor, City of Dixon
- Rick Fuller, Vice Mayor and Former Police Chief, City of Dixon
- Harry Price, Mayor, City of Fairfield
- Ayn Wieskamp, Board Member, East Bay Regional Park District
- Mike Segala, Councilmember, Suisun City
- Sam Derting, Councilmember, Suisun City
- Jane Day, Vice Mayor, Suisun City
- Jim Rogers, Councilmember, City of Richmond
- Joel B. Young, Director At Large, AC Transit Board of Directors
- John Santry, President, American Federation of Government Employees (AFGE) Local 1764, Travis AFB
- Dan Richard, Former Director, BART
- Bill Durston, 2008 Democratic Congressional Candidate, California Democratic Party
- Charlie Brown, 2008 Democratic Congressional Candidate, California Democratic Party
- Teena Miller, Northern Vice-Chair, California Democratic Party - Irish American Caucus
- Brigette Hunley, Chair, California Democratic Party Computer and Internet Caucus
- Helen Allen, Former Mayor, City of Concord and Clayton
- Linda Jeffery Sailors, Former Mayor, City of Dublin
- Jamie Johnson, Community Services Commissioner, City of Fairfield
- John Shirley, Former Mayor and WWII Veteran, City of Livermore
- Cathie Brown, Former Mayor, City of Livermore
- Ruth Forney, Former Supervisor, County of Solano
- John Vasquez, President of Board of Supervisors, County of Solano
- Ken Richard and Kathy Klein, CD 10 Obama Delegates, Democratic National Convention
- Stephanie Cobb, Executive Committee Member, Fairfield-Suisun Teachers Association
- Gordon Longerbeam, Retired Employee, Lawrence Livermore National Laboratory
- Deb Jachens, Vice President, Napa-Solano Central Labor Council
- Jon Riley, President, Napa-Solano Central Labor Council
- Allan Johnson, Vice President, Northern Solano Democratic Club
- Don Lowrie, Treasurer, Northern Solano Democratic Club
- Mark Burton, District Representative, Operating Engineers Local 3
- Michelle Coleman, President, SEIU Local 1021, Solano County Chapter
- Greg Peterson, Member, Solano County Democratic Central Committee
- Jeannie Hayes, Member, Solano County Democratic Central Committee
- Kyle Daley, Alternate Member, Solano County Democratic Central Committee
- Monica Brown, Member, Solano County Democratic Central Committee
- Shirley Hunley, Member, Solano County Democratic Central Committee
- Steve Westly, Former State Controller, State of California
- Richard Rominger and Evelyn Rominger, Former Secretary of Agriculture, State of California
- Wesley Clark (Ret.), General, U.S. Military
- George Lakoff, Professor, UC Berkeley
- Maria Geluz, Vice President, Women & Seniors Democratic Club
- Ed Prieto, Sheriff, Yolo County Sheriff's Department
- Craig McNamara
Newspapers
- Contra Costa Times (primary election)
- San Francisco Chronicle (primary and general election)
- Livermore Independent News (pg. 4)
- San Francisco Bay Guardian (primary and general election)
Labor Unions
- Alameda Labor Council
- American Federation of Government Employees (AFGE) Local 1764, Travis AFB
- American Federation of State, County and Municipal Employees Local #3299
- Bay Area Union Labor Party
- California Federation of Teachers
- California Labor Federation
- California League of Conservation Voters
- California Nurses Association
- California Professional Firefighters
- California School Employees Association
- California State University Employees Union
- California Teachers Association
- California Teamsters Public Affairs Council
- Communication Workers of America
- Democratic Activists for Disabilities Issues (DADI)
- International Brotherhood of Electrical Workers - Local 340
- International Union of Operating Engineers Local #12
- International Union of Operating Engineers Local #3
- International Union of Painters & Allied Trades
- Iron Workers – District Council
- Laborers Local #185
- Laborers Local #304
- Laborers Local #324
- LIUNA: Laborers International Union of North America
- Napa-Solano Central Labor Council
- Northern California Carpenters Regional Council
- Office and Professional Employees International Union Local 29
- Operating Engineers Local 3
- Pile Drivers Local Union No. 34
- Peace Officers Research Association of California (PORAC)
- Sacramento Central Labor Council
- SEIU California State Council
- Service Employees International Union, SEIU Local 1021
- Sierra Club
- Sprinklerfitters Local Union 483
- Teamsters #150
- Teamsters #350
- UAW: United Automobile, Aerospace and Agricultural Implement Workers of America
- UFCW: United Food & Commercial Workers, Local 5
- UFCW: United Food & Commercial Workers, Local 8
- UFCW: United Food & Commercial Workers, Western States Council
Student/Youth Leaders
- Ben Allen, Former Student Regent, University of California Board of Regents
- D'Artagnan Scorza, Former Student Regent, University of California Board of Regents
- Dina Cervantes, Former Chair, California State Student Association
- Kavya Shankar, National Vice President - Western Region, Future Business Leaders of America
- Louise Hendrickson, Former President, University of California Student Association
- Marissa Evans, National Director of Activism, Junior Statemans of America
- Reid Milburn, President, Student Senate for California Community Colleges
- Amos Young Jr., Orange County & Inland Empire Regional Director, California Young Democrats
- Andrae Macapinlac, President, Democratic Caucus at San Jose State University
- Andrea San Miguel, Founder and Chapter Coordinator, Students for Barack Obama at UC Santa Cruz
- Bobby Almeida, President, USC College Democrats
- Caroline Tan, California High School Assistant Field Director, California Students for Barack Obama
- Don Gibson, Political Director, California College Democrats
- Elliot Scales, Chapter Coordinator, Students for Barack Obama at UC Berkeley
- Jeremy Wolff, President, College Democrats of UC Santa Cruz
- Jonathon Goetz, Secretary, California Young Democrats
- Kalwis Lo, Chair, Student Union Assembly of UC Santa Cruz
- Kennan Cronen, Events Director, Bruin Democrats
- Melissa Hurtado, Vice President of Finance, California College Democrats
- Molly Kawahata, Founder and High School Coordinator, California Students for Barack Obama
- Nibal Halabi, Deputy Regional Director - Central Valley, California Young Democrats
- Patrick Ip, High School State Director, California Students for Barack Obama
- Skylar Covich, President, St. Mary's College Democrats
- Stephanie Chan, Founder and State Communications Coordinator, California Students for Barack Obama
- Josh Franco, Founder and State Coordinator, California Students for Barack Obama
- Juan Carmen, President, Associated Students of UC Merced
- Mark Torres, Regional Director, Central Valley, California Young Democrats
- Mayra Chavez, Former Coordinator, Students for the Central Valley
Titles for Identification Purposes Only
