Catherine Stefani believes a better California begins right here in our neighborhoods. She’s dedicated her career to making communities safer and making government work for all of us — as a county supervisor, a policy analyst, a national advocate for sensible gun laws and a champion for victims’ rights.

As a county supervisor and a mother of two, she’s worked to make schools better and communities safer. She’s worked tirelessly to improve community policing and the readiness of first responders. She understands the difficulty parents face raising a family in the Bay Area and has voted consistently to promote the creation of affordable housing. Based on her experience as a prosecutor, Catherine authored Proposition D to create a local advocacy office for vulnerable victims of domestic violence and other crimes.

Catherine, alongside her former colleagues from the Contra Costa County district attorney’s office, on the steps of the Martinez courthouse.

Growing Up Appreciating Hard Work and Workers

Catherine grew up in Merced, a farming town in California’s Central Valley. Her mom was a nurse and union activist and her father ran a small business. She developed a strong appreciation for the daily challenges faced by working people and small business owners.

After graduating from St. Mary’s College and McGeorge School of Law, Catherine worked as a prosecutor for the Office of the Contra Costa County District Attorney.

Catherine was recognized by the East Bay Business Times as one of the region’s “top 40 under 40 leaders” for her hard work and tenacity.

Catherine advocating for gun violence prevention with Moms Demand Action.

A Career Developing Policy

Catherine developed deep policy expertise as an analyst for some of California’s top leaders, including San Jose Vice Mayor Cindy Chavez, the California Department of Justice, and California Assembly Speaker Herb Wesson, for whom she analyzed pending bills for the Assembly Democratic Caucus.

Catherine served as a senior aide to San Francisco supervisors Michela Alioto-Pier and Mark Farrell. She’s fought alongside community leaders for better police protection, cleaner parks, the creation of affordable housing, and humane solutions to homelessness. Her collaborative style and ability to work with neighborhood leaders has achieved real results.

Motivated by tragic shootings nationwide, Catherine founded the San Francisco chapter of Moms Demand Action to take on the National Rifle Association and fight for sensible gun laws.

Catherine, surrounded by her family, takes the oath of office as District 2 Supervisor.

Taking on Powerful Interests

Recognized for her effectiveness and accomplishments, Catherine was appointed San Francisco County Clerk and later San Francisco Supervisor, winning election in her own right in 2018 and re-election in 2022. Catherine has built a reputation bucking political convention and taking on powerful interests — challenging the NRA, fighting for increased investment in public safety and taking on corruption in city government and county-funded nonprofits.

Catherine has lived in San Francisco for more than two decades, raising her two children, Dominic and Gianna, with her husband, Chris.Catherine’s deep policy experience, decades of community advocacy, collaborative approach and fearless tenacity have earned her recognition and respect. She’s ready on day one to hit the ground running in the Assembly, working for families in our district.