The Republican National Committee is also taking stock of what motivates AAPI voters, with outreach such as setting up tables at gas stations to ask residents about their concerns. The committee's presence in Orange County, where it opened an AAPI community center last year, is its strongest in the state because of its "robust team," said California RNC spokeswoman Hallie Balch.

Both major parties traditionally ignored this demographic until recently, when Orange County races grew more competitive and officials realized the size and growth of this diverse population, said Karthick Ramakrishnan, a professor of public policy at UC Riverside.

Asian Americans make up the fastest-growing racial or ethnic group in the United States, according to the Pew Research Center. In Orange County, home to one of the largest Asian American communities nationwide, well over a fifth of the population is AAPI, according to the U.S. Census

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