Dave Pine was first elected to the San Mateo County Board of Supervisors in a special election in May 2011, and subsequently reelected in 2012, 2016 and 2020.
He served as Board President in 2014 and 2018. He represents District 1 which includes Burlingame, Hillsborough, Millbrae, and portions of San Bruno and South San Francisco; the unincorporated communities of San Mateo Highlands, Baywood Park and Burlingame Hills; and the San Francisco Airport.
As a board member for the San Francisco Bay Conservation and Development Commission (BCDC), the SF Bay Restoration Authority, the San Mateo County Flood and Sea Level Rise Resiliency District Board, and the San Francisquito Creek Joint Powers Authority, Supervisor Pine has worked extensively on the intersecting issues of flood control, sea level rise and tidal land restoration. He is also the founding chair of the Peninsula Clean Energy Authority and serves on the boards of the San Mateo County Transit District (SamTrans), the Peninsula Corridor Joint Powers Board (Caltrain), the Bay Area Regional Collaborative, and Joint Venture Silicon Valley.
Supervisor Pine previously was a school board member for the Burlingame School District from 2003 to 2007 and the San Mateo Union High School District from 2007 to 2011. He is also a past president of the San Mateo County School Boards Association.
Before focusing his career on public service, Pine worked as an attorney representing start-up and high-growth technology companies. After working in private practice with Fenwick & West, he served as Vice President and General Counsel for Radius, Excite@Home, and Handspring.
Originally from New Hampshire, Pine is a graduate of Dartmouth College, where he was awarded a Harry S. Truman scholarship and was elected, at age 19, to the New Hampshire State House of Representatives. Following his undergraduate studies, Pine earned his Juris Doctorate from the University of Michigan Law School.
John grew up in Richmond and earned a BA in Political Science and a law degree at U.C. Berkeley.
He was first elected to the Contra Costa Board of Supervisors in 1998 and has been overwhelmingly re-elected five times and represents 210,000 residents along San Francisco Bay in the western most urban and diverse area of the county. He previously served for 10 years on the East Bay Municipal Utility District Board, serving as President in 1995 and 1996.
John is a recognized leader in Bay Area regional government and on air quality and climate change issues. He was appointed by Governor Brown in 2013 to the California Air Resources Board and has served on the Bay Area Air Quality Management District Board since 2006, serving as Chair in 2012.
John served as President of the California State Association of Counties and has been a leader on environmental issues and serves on the San Francisco Bay Conservation and Development Commission (BCDC) and as Vice-Chair of the San Francisco Bay Restoration Authority where he helped lead an effort to pass an historic measure to raise $500 million for S.F. Bay.
John helped found the RYSE Center, an innovative and popular youth center in Richmond, which is grounded on principles of social justice and youth development. He is currently working with non-profit Urban Tilth to develop an urban educational farm in North Richmond.
Lisa Gauthier was elected to the East Palo Alto City Council in 2012. She previously held the positions of Vice Mayor in 2014, 2018, and 2022 and Mayor in 2015, 2019, and 2023. Lisa is the SVP of inclusion & Belonging for the Silicon Valley Leadership Group, where she leads the Workforce/Education, Racial Justice & Equity, & Healthcare policy areas. Lisa recently worked as the Government Affairs Manager at Study.com, an online education company in Mountain View, where she supported the company's community impact programs – including Working Scholars, a community-funded free college initiative.
Lisa is an active board member with The Health Trust, Live in Peace, CCAG, San Mateo County Office of Emergency Services, Stanford Medicine Community Council, San Mateo County's One Shoreline Agency, and the San Francisquito JPA. She is a graduate of Emerge, a leadership program for democratic women, and a Regional Area Director for BWOPA (Black Women Organized for Political Action). She was awarded the Athena Award from the Mountain View Chamber of Commerce in 2018. She was chosen as one of Silicon Valley's 100 Women of Influence in 2020 by Silicon Valley Business Journal and received the Women of the Year Award from Assembly member Marc Berman in 2022.
In 2019, she earned her bachelor's degree in business administration with a focus on general management from Thomas Edison University in New Jersey. She is the proud mother of three young adults, a longtime resident of East Palo Alto, and an active community volunteer.
Supervisor Gorin represents the First District of Sonoma County, which is primarily eastern Santa Rosa, Sonoma Valley bordering San Pablo Bay, and areas east to the Napa county line. First elected in 2012, she served as Chair of the Board of Supervisors in 2015. She serves on the Sonoma County Water Advisory Committee, Local Agency Formation Commission (LAFCO), Sonoma County Transportation Authority, Sonoma County Regional Climate Protection Authority, Sonoma Valley County Sanitation District, and the Sonoma County Waste Management Agency. In addition to her County assignments, Supervisor Gorin represents the County regionally at Bay Conservation Development Commission, North Bay Water Reuse Authority and Association of Bay Area Governments (ABAG).
A native of Massachusetts, Ms. Gorin and her family moved to Sonoma County in 1982. Ms. Gorin graduated from Sonoma State University in 1991, with a degree in Political Science and Economics. In 1996 Ms. Gorin was elected to the Santa Rosa School Board, subsequently served on the Santa Rosa Board of Public Utilities, and Santa Rosa Planning Commission and served as a six-year Santa Rosa City Council member and two years as Mayor.
Sophie Hahn is a Berkeley City Councilmember representing District 5, an area encompassing much of North Berkeley. Reelected to her second term in 2020, she has authored more than 100 pieces of legislation focused on climate and environment, equity, homelessness, affordable housing, and support for local business. Councilmember Hahn is also a Berkeley Public Library Board Trustee and serves on the Council of the Friends of the Bancroft Library at UC Berkeley. Previously she served for many years on Berkeley’s Zoning Adjustments Board and chaired the Commission on the Status of Women.
Deeply committed to environmental work, Councilmember Hahn is the author of Berkeley’s Single-Use Foodware and Litter Reduction legislation, which received the 2020 Pollution Prevention Award from The San Francisco Bay Regional Water Quality Control Board. The legislation keeps trash and associated microplastics and chemicals out of urban creeks and the Bay, and has been cited as a model approach to reducing throw-away foodware and transitioning to reusables.
Councilmember Hahn authored legislation to facilitate urban agriculture and implement high green building standards, and worked to bring 100% renewable energy to Alameda County by helping establish East Bay Community Energy. She Co-Chaired then-Assemblymember Tony Thurmond’s 15th District Environmental Task Force, sponsored Berkeley’s Climate Emergency Declaration, has served as Chair of the Sierra Club, Northern Alameda County Group, and for more than ten years has run an urban farm and CSA, The Berkeley Basket, from her own backyard.
After receiving her BA in History from UC Berkeley and a JD from Stanford Law School, Hahn practiced law; worked for the International Planned Parenthood Federation; started, ran and sold a small business; raised three children; and served on many civic boards and commissions.
Karen Holman, Vice President of the Midpeninsula Regional Open Space District Board of Directors, has been active in the community for many years, including a long public record of environmental stewardship. She was a member of both Acterra and the City of Palo Alto Zero Waste Task Forces and has had roles in neighborhood associations and numerous non-profit organizations. In Palo Alto over the last 17 years she served as mayor, city councilmember, and planning commissioner. In 2013-14, Karen co-chaired the Midpeninsula Regional Open Space District Advisory Committee, contributing to the creation of the District’s Vision Plan.
Born and raised in Missouri, Karen has lived in Palo Alto since 1975. Karen had a long career in graphic design before pursuing work in the conservation and historic preservation field, including serving as Executive Director of the Palo Alto History Museum. She holds a B.A. in graphic arts from the University of Arkansas.
Aaron Peskin is a member of the San Francisco Board of Supervisors, representing District 3, which is comprised of North Beach, Chinatown, Fisherman’s Wharf, Polk Gulch, Union Square/Financial District and Russian, Nob and Telegraph Hills. He has lived in District 3 for almost thirty years.
He is currently serving his fourth non-consecutive term on the Board of Supervisors, including two terms as the unanimously-elected President of the Board. On the Board of Supervisors, Aaron Peskin continues to lead the City's work to preserve and expand its affordable housing stock, as well as set regional standards for environmental conservation and sustainable transit planning.
Aaron Peskin has brought his 20-year experience as the President of Great Basin Land & Water, an environmental nonprofit organization dedicated to the preservation and enhancement of land and water resources for public purposes, to his work at the Board of Supervisors.
He has also championed regional collaboration while serving at the Trust for Public Land, the California Coastal Commission, the Golden Gate Bridge Authority, the Bay Conservation & Development Commission, the Sea-Level Rise Coordinating Committee and now as the Chair of the San Francisco County Transportation Authority.