Political career
Ta served as a city councilor in Westminster before being elected mayor. He became mayor in 2012 and was the city's first Vietnamese-American mayor. Ta was reelected in 2018. He is a Republican and has advocated for the Republican Party to take a greater interest in Vietnamese voters. Vietnamese Americans traditionally voted Republicans, but Democrats have made gains recently, especially in Orange County.
In 2019, Ta attracted publicity for clashing with other members of Westminster's city council. He and fellow council members Kimberly Ho and Chi Charlie Nguyen frequently sparred with the remaining members. Notably, they passed a controversial resolution alleging that the Vietnamese government was improperly interfering in city politics. This dispute culminated in the three voting to change the council's procedures over the objections of other members. Opponents of the three councilors filed for a recall election in response. In April 2020, Ta and his allies survived the recall attempt.
In January 2022, Ta announced his intention to run for election to the California State Assembly in District 70, which was being vacated by incumbent Janet Nguyen. He placed second in the top-two primary in June and faced Garden Grove City Councilwoman Diedre Thu-Ha Nguyen in the November general election. That same year, a council dispute over renewing Westminster's sales tax placed the city at risk of bankruptcy. Ta was also censured for false statements he made about other councilors.
In November 2022, Ta won the election to represent the 70th district in the California State Assembly. He took office in December.
As a delegate for Trump, Ta has supported Donald Trump as U.S. President in the 2024 presidential election.
California State Assembly
In 2023, Ta secured $1 million in state funding for the development of a universally accessible playground at Fountain Valley Sports Park. The project was designed to provide recreational facilities accessible to children with a range of physical abilities.
In 2024, Ta introduced legislation concerning Mendez v. Westminster, the 1947 federal court case challenging school segregation in Orange County. The legislation sought to incorporate the case and its role in California school desegregation into the state's history-social science curriculum. The effort received support from members of the Mendez family, whose involvement in the case contributed to the challenge against segregated schools in California.
Ta also introduced legislation to prohibit loitering in a public place with the intent to purchase commercial sex. The proposal was developed in connection with concerns raised by the City of Stanton regarding prostitution and related activity. The legislation was among a number of bills that failed to advance through the California Legislature in 2024.
In the area of behavioral health, Ta authored legislation intended to protect continued access to treatment for people with autism and other lifelong developmental disabilities. The measure prohibited health plans from requiring patients to obtain a new diagnosis solely because they had reached a certain age in order to continue receiving medically necessary behavioral health treatment. The legislation was subsequently signed into law.
In 2025, Ta authored legislation seeking to limit increases in certain utility rates so that they would not exceed the rate of inflation. The proposal advanced through a legislative committee in March 2025.
Ta also authored a measure designating October 18 as Huell Howser Day in California, recognizing television personality Huell Howser, who was known for documenting California history, communities and culture through his television programs.
Ta has also authored legislation addressing the unauthorized collection of genetic material. The proposal would make it a crime, under specified circumstances, to collect another person's DNA without that person's consent.
In 2025, the Regional Center of Orange County named Ta its "Elected Official of the Year" as part of its Spotlight Awards. The organization recognized Ta for his legislative work involving autism, developmental disabilities and access to behavioral health services.
In 2026, following a chemical emergency in Garden Grove, Ta introduced legislation that would exempt qualifying settlement payments received by people affected by the incident from California state income taxation.
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