Mike McGuire (politician)

Mike McGuire (born July 21, 1979) is an American politician who has been a member of the California State Senate representing the 2nd district since 2014. A Democrat, he served as majority leader from 2022 to 2024 and senate president pro tempore from 2024 to 2025. His district encompasses the North Coast region, from Marin County to Del Norte County.

McGuire served as assistant majority leader from 2018 until he succeeded Robert Hertzberg as majority leader in 2022. Prior to being elected to the state senate in 2014, he was a member of the Sonoma County Board of Supervisors and served as mayor of Healdsburg. By August 2023, he began fundraising to run for State Insurance Commissioner in 2026. By November 2025, McGuire changed course and announced that he would instead run for Congress in the newly redrawn 1st district.

Mike McGuire comes from a family of farmers, specializing in grape and prune farming for over 50 years. In 1998, he became the youngest person ever elected to the Healdsburg School Board at age 19. He attended Sonoma State University in Rohnert Park, California, receiving a Bachelor of Arts in political science in 2002.

McGuire first held elected office at 19 in 1998 when he was elected to the Healdsburg School Board. In 2004, he was elected to the Healdsburg City Council, where he spent six years, including time as the city's youngest mayor. In 2010, he became a member of the Sonoma County Board of Supervisors.

In 2014, McGuire ran for the California State Senate to succeed Democratic senator Noreen Evans, who decided not to seek reelection. McGuire easily defeated Republican candidate Lawrence Weisner for the District 2 State Senate seat that year, winning 70% of the vote.

In April 2015, he introduced bill SB 643, with the purpose of legalizing and regulating the medical marijuana industry. The regulation would cover cultivation to consumption. McGuire criticized the state's lack of rules and regulations for medical marijuana, and was opposed to the Adult Use of Marijuana Act (Proposition 64). In September 2017, he was part of the state's legislative session that urged Congress to censure the president Donald Trump.

In September 2018, the bill he introduced to establish a statewide protocol for emergency alerts for all 58 California counties was signed into a law. In December 2018, he was selected to serve as assistant majority leader of the California Senate. In early January 2019, McGuire "applauded" Governor Gavin Newsom's 2019 budget plan for California. That same month, when President Donald Trump threatened to withhold government emergency fundings for the wildfires because of poor forest management by the state of California, McGuire replied in a tweet that most California forests affected are managed by the federal government and not the state.

In 2019, he co-authored California Senate Bill 27 (SB27) officially named Tax Transparency Bill which was signed into law by Newsom on July 30, 2019. He authored a bill that established the Great Redwood Trail as a proposed rail-to-trail project in Northern California.

McGuire was announced as the incoming State Senate President Pro-Tempore on August 28, 2023. He assumed the position on February 5, 2024.

As President pro tempore of the California State Senate, McGuire selected Sen. María Elena Durazo to lead the Senate Local Government Committee and Aisha Wahab to lead the Senate Housing Committee. Both Durazo and Wahab used their chairmanship to seek to block the passage of California state legislation to allow apartment buildings near major transportation hubs in California, amid a major housing shortage.

• Official website
• Mike McGuire at Ballotpedia
• Appearances on C-SPAN